{"id":821,"date":"2009-12-05T00:39:47","date_gmt":"2009-12-04T16:39:47","guid":{"rendered":"http:\/\/test999.eblhost.com\/blog\/?p=821"},"modified":"2009-12-05T00:44:50","modified_gmt":"2009-12-04T16:44:50","slug":"processing%ef%bc%9a%e6%96%87%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/learn.travelchinawith.me\/?p=821","title":{"rendered":"Processing\uff1a\u6587\u672c"},"content":{"rendered":"<div id='gallery-1' class='gallery galleryid-821 gallery-columns-4 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/1.gif'><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" src=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/1-120x120.gif\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-830\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-830'>\n\t\t\t\t\u5f39\u7403\u663e\u4f4d\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/2.gif'><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" src=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/2-120x120.gif\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-831\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-831'>\n\t\t\t\t\u5c45\u4e2d\u3001\u5bf9\u9f50\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/3.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" src=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/3-120x120.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-832\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-832'>\n\t\t\t\t\u6587\u672c\u9a6c\u8d5b\u514b\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/4.gif'><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" src=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/4-120x120.gif\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-833\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-833'>\n\t\t\t\t\u4efb\u610f\u5927\u5c0f\u6587\u5b57\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/5.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" src=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/5-120x120.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-834\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-834'>\n\t\t\t\t\u81ea\u9002\u5e94\u5b57\u8ddd\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/6.gif'><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" src=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/6-120x120.gif\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-835\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-835'>\n\t\t\t\t\u6587\u5b57\u9a9a\u52a8\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/7.gif'><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" src=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/7-120x120.gif\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-836\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-836'>\n\t\t\t\t\u6587\u5b57\u4f9d\u9644\u66f2\u7ebf\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/8.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" src=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/8-120x120.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-837\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-837'>\n\t\t\t\t\u4eae\u5ea6\u8c03\u6574\u5b57\u4f53\u5927\u5c0f\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<p>1. \u672c\u8bfe\u6211\u4eec\u8981\u5b66\u4e00\u4e2a\u65b0\u7684\u7c7b\uff0c\u79f0\u4e3a\u5b57\u7b26\u4e32\uff08string\uff09\u3002\u5bf9\u6211\u4eec\u6765\u8bf4\uff0c\u8fd9\u5e76\u4e0d\u662f\u4e00\u4e2a\u5168\u65b0\u7684\u6982\u5ff5\uff0c\u4e4b\u524d\u6211\u4eec\u4e5f\u66fe\u63a5\u89e6\u8fc7\u5b83\u4eec\uff1a<\/p>\n<pre class=\"brush:js\">println(\"printing some text to the message window!\");      \/\/ \u5217\u5370\u4e00\u4e2a\u5b57\u7b26\u4e32<\/pre>\n<pre class=\"brush:js\">PImage img = loadImage(\"filename.jpg\");   \/\/ \u4e3a\u6587\u4ef6\u540d\u4f7f\u7528\u4e00\u4e2a\u5b57\u7b26\u4e32<\/pre>\n<p>\u8fd9\u6837\u770b\u8d77\u6765\uff0c\u6211\u4eec\u4f3c\u4e4e\u53ef\u4ee5\u7b80\u5355\u7684\u5c06\u5b57\u7b26\u4e32\u7406\u89e3\u4e3a\u201c\u5728\u53cc\u5f15\u53f7\u5185\u7684\u5185\u5bb9\u201d\u3002<\/p>\n<p>2. \u5b57\u7b26\u4e32\u7684\u6838\u5fc3\u5176\u5b9e\u662f\u50a8\u5b58\u5b57\u6bcd\u6570\u7ec4\uff0c\u5982\u679c\u6ca1\u6709string\u7c7b\uff0c\u90a3\u4e48\u6211\u4eec\u8981\u5199\u4e00\u884c\u5b57\u7684\u4ee3\u7801\u53ef\u80fd\u4f1a\u53d8\u6210\uff1a<\/p>\n<pre class=\"brush:js\">char[] sometext = { 'H', 'e', 'l', 'l' , 'o' , ' ', 'W' , 'o' , 'r', 'l' ,  'd'};<\/pre>\n<p>\u8fd9\u4e48\u641e\u7edd\u5bf9\u4f1a\u88ab\u641e\u6b7b\uff0c\u5982\u679c\u4f7f\u7528string\u5bf9\u8c61\uff0c\u4e16\u754c\u7acb\u9a6c\u53d8\u5f97\u7b80\u5355\u7f8e\u597d\u8d77\u6765\uff1a<\/p>\n<pre class=\"brush:js\">String sometext = \" \u5982\u4f55\u505a\u4e00\u4e2a\u5b57\u7b26\u4e32? \u5728\u5f15\u53f7\u95f4\u8f93\u5165\u5b57\u7b26!\";<\/pre>\n<p>3. \u6211\u4eec\u5fc5\u987b\u8bb0\u4f4f\uff0c\u4e00\u4e2astring\u662f\u4e00\u4e2a\u4f34\u968f\u65b9\u6cd5\uff08method\uff09\u7684\u5bf9\u8c61\u3002\u7c7b\u4f3c\u4e8ePImage\u5bf9\u8c61\u53ef\u4ee5\u5728\u5b58\u50a8\u4e00\u4e2a\u56fe\u50cf\u6570\u636e\u7684\u540c\u65f6\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u65b9\u6cd5copy(),  loadPixels()\u7b49\u7b49\u3002\u5bf9\u4e8estring\u6765\u8bf4\uff0c\u4e00\u4e2a\u65b9\u6cd5\u662f charAt()\uff0c\u5b83\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\u91cc\u7ed9\u5b9a\u5e8f\u53f7\u7684\u5b57\u6bcd\u3002\u540c\u6570\u7ec4\u4e00\u6837\uff0c\u5b57\u7b26\u4e32\u7684\u7b2c\u4e00\u4e2a\u5b57\u6bcd\u540c\u4e3a\u7b2c0\u53f7\u3002<\/p>\n<p>4. \u901a\u8fc7Daniel\u968f\u540e\u51fa\u7684\u4e00\u9898\u6211\u610f\u5916\u7684\u53d1\u73b0\uff0c\u5728\u4e00\u4e2a\u5b57\u7b26\u4e32\u5185\uff0c\u7a7a\u683c\u4e5f\u7b97\u4e00\u4e2a\u201c\u5b57\u6bcd\u201d\uff0c\u4e5f\u5360\u5e8f\u53f7\uff0c\u65e0\u8bba\u8fd9\u4e2a\u7a7a\u683c\u51fa\u73b0\u5728\u5b57\u7b26\u4e32\u5185\u7684\u4efb\u4f55\u5730\u65b9\u3002<\/p>\n<p>5. \u53e6\u4e00\u6709\u7528\u7684\u65b9\u6cd5\u662flength()\u3002\u8fd9\u5e38\u4f1a\u4e0e\u6570\u7ec4length\u7684\u5c5e\u6027\u6df7\u6dc6\u3002\u4e0d\u8fc7\u4f60\u8bb0\u5f97\u6309\u4e00\u4e0b\u65b9\u5f0f\u547c\u53eb\u5b83\u5c31\u5bf9\u4e86\uff1a<\/p>\n<pre class=\"brush:js\">String message = \"\u8fd9\u4e2a\u5b57\u7b26\u4e32\u6709\u5341\u4e94\u4e2a\u5b57\u7b26\u90a3\u4e48\u957f\u3002\";   \r\nprintln(message.length());<\/pre>\n<p>\u901a\u8fc7\u7b28\u529e\u6cd5\u2014\u2014\u6570\u6570\u7684\u65b9\u5f0f\uff0c\u6211\u4eec\u770b\u5230\uff0c\u53e5\u53f7\u4e5f\u4f1a\u88ab\u5f53\u4f5c\u4e00\u4e2a\u201c\u5b57\u6bcd\u201d\u3002\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u63a8\u8bba\uff0c\u5728\u4e00\u4e2a\u5b57\u7b26\u4e32\u5185\u4efb\u4f55\u5360\u4f4d\u7b26\u90fd\u4f1a\u88ab\u5f53\u4f5c\u4e00\u4e2a\u201c\u5b57\u6bcd\u201d\u88ab\u8fdb\u884c\u8ba1\u6570\u3002<\/p>\n<p>6. \u987a\u5e8f\u5217\u5370\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u6bcf\u4e00\u4e2a\u5b57\u6bcd\uff1a<\/p>\n<pre class=\"brush:js\">String message = \"\u4e00\u5806\u6587\u5b57.\"; \r\n    for(int i = 0; i < message.length(); i++) {\r\n         char c =  message.charAt(i); \r\n         println(c);<\/pre>\n<p>7.  toUpperCase()\u53ef\u4ee5\u4f7f\u5b57\u7b26\u4e32\u5185\u5b57\u6bcd\u5168\u5927\u5199\uff1a<\/p>\n<pre class=\"brush:js\">String message = \"a bunch of text here.\";\r\nString uppercase = message.toLowerCase();   \r\nprintln(uppercase);<\/pre>\n<p>8. toLowerCase()\u53ef\u4ee5\u4f7f\u5b57\u7b26\u4e32\u5185\u5b57\u6bcd\u5168\u5c0f\u5199\uff0c\u7528\u6cd5\u540c\u4e0a\u3002<\/p>\n<p>9. \u7ec6\u5fc3\u7684\u4f60\u53ef\u80fd\u4f1a\u53d1\u73b0\uff0c\u5728\u7b2c7\u6761\u7684\u4f8b\u5b50\u5f53\u4e2d\uff0c\u4e3a\u4ec0\u4e48\u6211\u4eec\u8981\u7528println(uppercase); \uff0c\u800c\u4e0d\u7528println(message);\uff1f\u56e0\u4e3astring\u5bf9\u8c61\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u4e0d\u53ef\u53d8\u5bf9\u8c61\u3002\u6240\u8c13\u201c\u4e0d\u53ef\u53d8\u201d\u662f\u6307\u5b83\u7684\u6570\u636e\u6c38\u8fdc\u90fd\u4e0d\u53ef\u53d8\u3002\u8fd9\u5c31\u610f\u5473\u7740\u4efb\u4f55\u65f6\u5019\u6211\u4eec\u8981\u6539\u53d8\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u6211\u4eec\u5fc5\u987b\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002\u56e0\u6b64\u5728\u8f6c\u6362\u5927\u5199\u7684\u65f6\u5019\uff0c\u65b9\u6cd5toUpperCase()\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u5168\u5927\u5199\u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u526f\u672c\u3002<\/p>\n<p>10. \u6700\u540e\uff0c\u6211\u4eec\u770b\u770bequals()\u3002\u8bf4\u5230\u201c\u7b49\u4e8e\u201d\uff0c\u4e5f\u8bb8\u4f60\u9996\u5148\u4f1a\u60f3\u5230\u8fd9\u4e48\u5199\uff1a<\/p>\n<pre class=\"brush:js\">String one = \"hello\";  \r\nString two = \"hello\";  \r\nprintln(one == two);<\/pre>\n<p>\u4ece\u6280\u672f\u89d2\u5ea6\u8bb2\uff0c\u5f53\u5bf9\u5bf9\u8c61\u4f7f\u7528\"==\"\uff0c\u5b83\u6bd4\u8f83\u7684\u662f\u6bcf\u4e2a\u5bf9\u8c61\u7684\u5185\u5b58\u4f4d\u7f6e\u3002\u5c3d\u7ba1\u6bcf\u4e2a\u5b57\u7b26\u4e32\u5305\u542b\u76f8\u540c\u7684\u6570\u636e\u2014\u2014\"hello\"\u2014\u2014\u5982\u679c\u5b83\u4eec\u662f\u4e0d\u540c\u7684\u5bf9\u8c61\u5b9e\u4f8b\uff0c\u5219\"==\"\u53ef\u80fd\u4f1a\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u7684\u5bf9\u6bd4\u3002\u8fd9\u6837\u7684\u65f6\u5019\uff0c\u5c31\u662fequals()\u53d1\u6325\u4f5c\u7528\u7684\u65f6\u5019\uff0c\u5b83\u7528\u6765\u5bf9\u6bd4\u4e24\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u5305\u542b\u76f8\u540c\u7684\u6570\u636e\uff0c\u800c\u65e0\u8bba\u5b83\u4eec\u5b58\u50a8\u7684\u4f4d\u7f6e\u5728\u54ea\u91cc\u3002<\/p>\n<pre class=\"brush:js\">String one = \"hello\";  \r\nString two = \"hello\";\r\nprintln(one.equals(two));<\/pre>\n<p>\u5c3d\u7ba1\u4ee5\u4e0a\u4e24\u79cd\u65b9\u6cd5\u90fd\u4f1a\u8fd4\u56de\u6b63\u786e\u7684\u7ed3\u679c\uff0c\u4f46\u662f\u7528equals()\u66f4\u4fdd\u9669\u3002\u57fa\u4e8estring\u5bf9\u8c61\u4e0d\u540c\u7684\u521b\u5efa\u65b9\u5f0f\uff0c\"==\"\u4e0d\u4f1a\u59cb\u7ec8\u4fdd\u6301\u6b63\u786e\u3002<\/p>\n<p>11. \u5b57\u7b26\u4e32\u8fd8\u53ef\u7528\u201c+\u201d\u53f7\u8fde\u63a5\u3002<\/p>\n<pre class=\"brush:js\">String helloworld = \"Hello\" + \"World\";<\/pre>\n<p>\u53d8\u91cf\u7167\u4f7f\uff1a<\/p>\n<pre class=\"brush:js\">int x = 10;   \r\nString message = \"x\u7684\u503c\u662f:\" + x;<\/pre>\n<p>\u201c\u56fe\u50cf\u201d\u4e00\u8bfe\u8f7d\u5165\u7f16\u53f7\u56fe\u50cf\u6570\u7ec4\u662f\u8fd9\u4e00\u7528\u6cd5\u4e00\u4e2a\u5f88\u597d\u7684\u4f8b\u5b50\u3002<\/p>\n<p>12. \u8981\u5728\u8424\u5e55\u4e0a\u663e\u793a\u4e00\u4e9b\u6587\u672c\uff0c\u6211\u4eec\u9700\u8981\u505a\u4ee5\u4e0b\u7b80\u5355\u51e0\u6b65\uff1a<br \/>\n12.1. Tools > Creat Font \u9009\u62e9\u4e00\u4e2a\u5b50\u4f53\u3002\u8fd9\u5c06\u521b\u5efa\u5e76\u5c06\u5b57\u4f53\u6587\u4ef6\u653e\u5165\u4f60\u7684data\u6587\u4ef6\u5939\u3002p5\u7684\u5b57\u4f53\u683c\u5f0f\u5f88\u7279\u6b8a\u2014\u2014\"vlw\"\uff0c\u5b83\u4f7f\u7528\u56fe\u50cf\u6765\u663e\u793a\u6bcf\u4e2a\u5b57\u6bcd\u3002\u56e0\u4e3a\u5982\u6b64\uff0c\u4f60\u540c\u65f6\u8fd8\u8981\u6307\u5b9a\u4f60\u60f3\u8981\u663e\u793a\u6587\u5b57\u7684\u5927\u5c0f\u3002<br \/>\n12.2. \u7533\u660e\u4e00\u4e2aPFont\u7c7b\u578b\u7684\u5bf9\u8c61\uff1a<\/p>\n<pre class=\"brush:js\">PFont f;<\/pre>\n<p>12.3. \u7528loadFont()\u8f7d\u5165\u5b57\u4f53\u3002\u8f7d\u5165\u4e00\u6b21\u5c31\u591f\u4e86\uff0c\u6240\u4ee5\u6211\u95e8\u5c06\u5b83\u653e\u5728setup()\u91cc\uff0c\u548c\u8f7d\u5165\u56fe\u50cf\u4e00\u4e2a\u9053\u7406\u3002<\/p>\n<pre class=\"brush:js\">f = loadFont(\"ArialMT-16.vlw\");<\/pre>\n<p>12.4. \u7528textFont()\u6307\u5b9a\u5b57\u4f53\u3002\u4e24\u4e2a\u5f15\u6570\uff0c\u7b2c\u4e00\u4e2a\u5b57\u4f53\u53d8\u91cf\uff0c\u7b2c\u4e8c\u4e2a\u5b57\u4f53\u5927\u5c0f\uff08\u53ef\u9009\uff09\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u5b57\u4f53\u5927\u5c0f\uff0c\u5219\u5b57\u4f53\u4f1a\u4ee5\u6700\u521d\u8f7d\u5165\u7684\u5927\u5c0f\u663e\u793a\u3002\u6307\u5b9a\u4e00\u4e2a\u4e0e\u521b\u5efa\u5b57\u4f53\u5927\u5c0f\u4e0d\u540c\u7684\u5b57\u4f53\u5927\u5c0f\u4f1a\u5f71\u50cf\u5b83\u7684\u663e\u793a\uff08\u548c\u653e\u5927\u7f29\u5c0f\u56fe\u50cf\u4e00\u6837\uff09\u3002<\/p>\n<pre class=\"brush:js\">textFont(f,36);<\/pre>\n<p>12.5. \u7528fill()\u6307\u5b9a\u989c\u8272\u3002<br \/>\n12.6. \u547c\u53ebtext()\u51fd\u6570\u663e\u793a\u6587\u672c\u3002\u4e09\u4e2a\u5f15\u6570\uff1a\u6587\u672c\uff0cx\u4f4d\u7f6e\uff0cy\u4f4d\u7f6e\u3002<\/p>\n<pre class=\"brush:js\">text( \"\u545c\u545c\u545c... \u5b57\u7b26\u4e32...  \" ,10,100);<\/pre>\n<p>12.7. \u4e0a\u5b8c\u6574\u7684\u4f8b\u5b50\uff1a<\/p>\n<pre class=\"brush:js\">\/\/ Step 2: \u7533\u660ePFont\u53d8\u91cf\r\nPFont f;  \r\n\r\nvoid setup() {\r\n  size(200,200);\r\n\r\n  \/\/ Step 3: Load Font\r\n  f = loadFont( \"ArialMT-16.vlw\" ); \r\n} \r\n\r\nvoid draw() {\r\n  background(255);\r\n  textFont(f,16); \/\/ Step 4: \u6307\u5b9a\u8981\u7528\u7684\u5b57\u4f53\r\n  fill(0);        \/\/ Step 5: \u6307\u5b9a\u5b57\u4f53\u989c\u8272\r\n\r\n  \/\/ Step 6: \u663e\u793a\u6587\u672c\r\n  text ( \"oNEwAY is a Chinese Post-Rock Band\" ,10,100); \r\n}<\/pre>\n<p>\u901a\u8fc7\u4e0a\u4f8b\uff0c\u6211\u53d1\u73b0\u8fd9\u73a9\u610f\u4e0d\u4f1a\u81ea\u52a8\u6362\u884c\uff0c\uff0c\u591a\u51fa\u6765\u7684\u90e8\u5206\u5c31\u4f1a\u663e\u793a\u5728\u7a97\u53e3\u4e4b\u5916\u800c\u4e0d\u53ef\u89c1\u3002<\/p>\n<p>13. \u5b57\u4f53\u8fd8\u53ef\u88abcreateFont()\u51fd\u6570\u521b\u5efa\uff1a<\/p>\n<pre class=\"brush:js\">myFont = createFont( \"Georgia\", 24, true);   \/\/ \u4e09\u4e2a\u5f15\u6570\u5206\u522b\u662f\uff1a\u5b57\u4f53\u540d\u5b57\uff0c\u5b57\u4f53\u5927\u5c0f\uff0c\u662f\u5426\u5f00\u542f\u5e73\u6ed1\u7684\u4e00\u4e2a\u5e03\u5c14\u8868\u8fbe\u5f0f<\/pre>\n<p>createFont()\u5141\u8bb8\u4f60\u521b\u5efa\u5b89\u88c5\u4e8e\u672c\u673a\u5374\u5728p5\u9ed8\u8ba4\u9009\u9879\u4e2d\u4e0d\u652f\u6301\u7684\u5b57\u4f53\u3002\u53e6\u5916\uff0ccreateFont()\u5141\u8bb8\u5b57\u4f53\u7f29\u653e\u5230\u4efb\u610f\u5927\u5c0f\u800c\u4e0d\u5f71\u54cd\u663e\u793a\u8d28\u91cf\u3002\u66f4\u591a\u4ecb\u7ecd\u8bf7\u53c2\u770bp5<a href=\"http:\/\/processing.org\/reference\/createFont_.html\">\u5728\u7ebf\u624b\u518c<\/a>.<\/p>\n<p>14. PFont.list()\u53ef\u4ee5\u67e5\u770b\u6240\u6709\u53ef\u7528\u7684\u5b57\u4f53\uff1a<\/p>\n<pre class=\"brush:js\">println(PFont.list());     \/\/ \u5217\u5370\u5168\u90e8\u53ef\u7528\u4e8ecreateFont() \u7684\u5b57\u4f53\u3002<\/pre>\n<p>15. \u4e0b\u9762\u8fd9\u4e2a\u7ec3\u4e60\u5728\u5f39\u8df3\u7684\u7403\u65c1\u8fb9\u4f34\u968f\u663e\u793a\u7403\u7684x\uff0cy\u4f4d\u7f6e\uff08\u5f53\u7136\u4e00\u4e2a\u66f4\u597d\u7684\u663e\u793a\u65b9\u5f0f\u662f\u5c06\u6587\u672c\u4f4d\u7f6e\u56fa\u5b9a\uff09\uff1a<\/p>\n<pre class=\"brush:js\">PFont f;\r\n\r\nfloat x = 100; \r\nfloat y = 0; \r\nfloat speed = 0; \r\nfloat gravity = 0.05;\r\n\r\nvoid setup() {\r\n  size(400,200);\r\n  f = createFont(\"Arial\", 16, true);\r\n  smooth();\r\n}\r\n\r\nvoid draw() {\r\n  background(255);\r\n  stroke(175);\r\n  rectMode(CENTER);\r\n  ellipse(x,y,10,10);\r\n  \r\n  y = y + speed;\r\n  \r\n  \/\/ Add gravity to speed.\r\n  speed = speed + gravity;\r\n  \r\n  \/\/ If square reaches the bottom\r\n  \/\/ Reverse speed\r\n  if (y > height) {\r\n    \/\/ Multiplying by -0.95 instead of -1 slows the square down each time it bounces (by decreasing speed).  \r\n    \/\/ This is known as a \"dampening\" effect and is a more realistic simulation of the real world (without it, a ball would bounce forever).\r\n    speed = speed * -0.95;  \r\n  }\r\n  \r\n  textFont(f,10);\r\n  fill(0);\r\n  \/\/ \u5c06\u6d6e\u70b9\u503c\u8f6c\u4e3a\u6574\u6570\u5e76\u663e\u793a \r\n  text((int)x+\", \"+(int)y,x+8,y-8);\r\n}<\/pre>\n<p>16. textAlign() \u2014\u2014 \u6307\u5b9a\u6587\u672c\u5bf9\u9f50\u6a21\u5f0f\uff1a<\/p>\n<pre class=\"brush:js\">PFont f;\r\n\r\nvoid setup() {\r\n  size(400,200);\r\n  f = createFont(\"Arial\", 16, true);\r\n}\r\n\r\nvoid draw() {\r\n  background(255);\r\n  stroke(175);\r\n  line(width\/2,0,width\/2,height);\r\n  textFont(f);\r\n  fill(0);\r\n  \r\n  \/\/ textAlign()\u8bbe\u7f6e\u6587\u672c\u5bf9\u9f50\u6a21\u5f0f. \u5b83\u6709\u4e00\u4e2a\u5f15\u6570: CENTER, LEFT, \u6216\u8005 RIGHT.\r\n  textAlign(CENTER); \/\/ \u5c45\u4e2d\r\n  text(\"\u8fd9\u662f\u5c45\u4e2d\u7684\u6587\u5b57.\" ,width\/2,60);\r\n  textAlign (LEFT) ; \/\/ \u5c45\u5de6\r\n  text(\"\u8fd9\u662f\u5de6\u5bf9\u9f50\u7684\u6587\u5b57.\" ,width\/2,100);\r\n  textAlign(RIGHT); \/\/ \u5c45\u53f3\r\n  text(\"\u8fd9\u662f\u53f3\u5bf9\u9f50\u7684\u6587\u5b57.\" ,width\/2,140);\r\n}<\/pre>\n<p>17. textWidth() \u2014\u2014 \u8ba1\u7b97\u5e76\u8fd4\u56de\u4efb\u4f55\u5b57\u6bcd\u6216\u6587\u672c\u5b57\u7b26\u4e32\u7684\u5bbd\u5ea6\u3002\u6bd4\u5982\u8bf4\u6211\u4eec\u8981\u5728\u8424\u5e55\u4e0b\u65b9\u505a\u4e00\u4e2a\u4ece\u53f3\u81f3\u5de6\u7684\u65b0\u95fb\u6eda\u52a8\u6761\u3002\u5f53\u6587\u5b57\u5168\u90e8\u6eda\u5165\u5de6\u8fb9\u540e\uff0c\u4ece\u53f3\u8fb9\u91cd\u65b0\u5f00\u59cb\u6eda\u52a8\u3002\u5982\u679c\u6211\u4eec\u77e5\u9053\u6587\u672c\u5f00\u5934\u7684x\u4f4d\u7f6e\u548c\u6587\u672c\u7684\u5bbd\u5ea6\uff0c\u6211\u4eec\u4fbf\u53ef\u77e5\u9053\u5b83\u4ec0\u4e48\u65f6\u5019\u4f1a\u5b8c\u5168\u6eda\u5165\u5de6\u8fb9\u3002textWidth()\u7ed9\u6211\u4eec\u7684\u6b63\u662f\u8fd9\u4e2a\u5bbd\u5ea6\u3002<br \/>\n\u9996\u5148\uff0c\u6211\u4eec\u5728setup()\u5185\u7533\u660e\u65b0\u95fb\uff0c\u5b57\u4f53\uff0cx\u53d8\u91cf\uff0c\u5e76\u521d\u59cb\u5316\u5b83\u4eec\u3002<\/p>\n<pre class=\"brush:js\">\/\/   \u4e00\u6761\u65b0\u95fb   \r\nString headline = \"New study shows computer programming lowers cholesterol.\";   \r\nPFont f;   \/\/ \u5168\u5c40\u5b57\u4f53\u53d8\u91cf   \r\nfloat x;   \/\/ \u65b0\u95fb\u7684\u6c34\u5e73\u4f4d\u7f6e   \r\nvoid setup()  {   \r\n  f = createFont( \"Arial\",16,true); \/\/ \u8f7d\u5165\u5b57\u4f53   \r\n  x = width; \/\/ \u5c06x\u653e\u5230\u53f3\u8fb9 \r\n} <\/pre>\n<p>draw()\u91cc\u8fb9\uff1a<\/p>\n<pre class=\"brush:js\">\/\/ \u5728x\u4f4d\u7f6e\u663e\u793a\u65b0\u95fb   \r\ntextFont(f,16);   \r\ntextAlign(LEFT);   \r\ntext(headline,x,180);<\/pre>\n<p>\u8ba9x\u51cf\u5c0f\uff0c\u4ee5\u4f7f\u6587\u672c\u5411\u5de6\u8d70\uff1a<\/p>\n<pre class=\"brush:js\">x = x \u2013 3;<\/pre>\n<p>\u7a0d\u5fae\u590d\u6742\u4e00\u70b9\u7684\u4e00\u6b65\uff0c\u6d4b\u8bd5\u6587\u672c\u662f\u5426\u5df2\u7ecf\u5168\u90e8\u6eda\u5165\u5de6\u4fa7\uff0c\u5982\u679c\u5df2\u7ecf\u79bb\u5f00\u8424\u5e55\uff0c\u91cd\u7f6e\u5176\u5230\u6700\u53f3\u8fb9\uff1a<\/p>\n<pre class=\"brush:js\">\/\/ \u5982\u679cx\u5c0f\u4e8e\u6587\u672c\u5bbd\u5ea6\u7684\u8d1f\u503c\uff0c\u5219\u8fd9\u6bb5\u6587\u672c\u4fbf\u5b8c\u5168\u5904\u4e8e\u8424\u5e55\u5916\r\nfloat w = textWidth(headline);   \r\nif (x < -w)  {  \r\n  x = width;      \r\n}<\/pre>\n<p>\u4e0b\u4f8b\u5373\u4ee5\u4e0a\u4ee3\u7801\u7684\u5408\u4f53\uff0c\u552f\u4e00\u4e0d\u540c\u7684\u662f\uff0c\u5b83\u5206\u522b\u6eda\u52a8\u4e24\u6bb5\u4e0d\u540c\u7684\u6587\u672c\uff1a<\/p>\n<pre class=\"brush:js\">\/\/ \u65b0\u95fb\u6570\u7ec4\r\nString[] headlines = {\r\n  \"Processing downloads break downloading record.\" ,\r\n  \"New study shows computer programming lowers cholesterol.\" ,\r\n};\r\n\r\nPFont f; \/\/ \u5168\u5c40\u5b57\u4f53\u53d8\u91cf\r\nfloat x; \/\/ \u6c34\u5e73\u4f4d\u7f6e\r\nint index = 0;\r\n\r\nvoid setup() {\r\n  size(400,200);\r\n  f = createFont( \"Arial\" ,16,true);\r\n  \r\n  \/\/ \u521d\u59cb\u5316x\u5230\u6700\u53f3\r\n  x = width;\r\n}\r\n\r\nvoid draw() {\r\n  background(255);\r\n  fill(0);\r\n  \r\n  \/\/ \u5728x\u4f4d\u7f6e\u663e\u793a\u65b0\u95fb\r\n  textFont(f,16);\r\n  textAlign (LEFT);\r\n  \r\n  \/\/ \u57fa\u4e8e\"index\"\u53d8\u91cf\u7684\u503c\u663e\u793a\u6570\u7ec4\u7684\u4e00\u4e2a\u7279\u5b9a\u5b57\u7b26\u4e32\r\n  text(headlines[index],x,180); \r\n  \r\n  \/\/ \u9012\u51cfx\r\n  x = x - 3;\r\n  \r\n  \/\/ \u5982\u679cx\u5c0f\u4e8e\u6587\u672c\u5bbd\u5ea6\u7684\u8d1f\u503c\uff0c\u5219\u8fd9\u6bb5\u6587\u672c\u4fbf\u5b8c\u5168\u5904\u4e8e\u8424\u5e55\u5916\r\n  \/\/ textWidth()\u88ab\u7528\u6765\u8ba1\u7b97\u5f53\u524d\u5b57\u7b26\u4e32\u7684\u5bbd\u5ea6.\r\n  float w = textWidth(headlines[index]); \r\n  if (x < -w) {\r\n    x = width;\r\n    \/\/ \u9012\u589eindex\uff0c\u8fd9\u6837\u5f53\u5f53\u524d\u5b57\u7b26\u4e32\u79bb\u5f00\u8424\u5e55\u4fbf\u663e\u793a\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002\r\n    index = (index + 1) % headlines.length; \r\n  }\r\n}<\/pre>\n<p>18. \u9664\u4e86textAlign()\u548ctextWidth()\u5916\uff0c\u8fd8\u6709textLeading(), textMode()\u548ctextSize()\u53ef\u7528\uff0c\u81ea\u5df1\u770bp5\u5728\u7ebf\u53c2\u8003for more\u3002<\/p>\n<p>19. \u4e60\u989817-6\uff0c\u505a\u4e00\u4e2a\u63a5\u5934\u63a5\u5c3e\u6301\u7eed\u6eda\u52a8\u7684\u6587\u672c\u6761\u3002\u770b\u4f3c\u7b80\u5355\uff0c\u6211\u5374\u4e0d\u4f1a\uff0c\uff0c\u5df2\u7ecf\u7ed9\u4e86Daniel\u90ae\u4ef6\uff0c\u7b49\u4ed6\u7b54\u6848\u3002<\/p>\n<p>20. \u7ed3\u5408\u50cf\u7d20\u6570\u7ec4\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u5b57\u6bcd\u505a\u4e00\u4e2a\u89c6\u9891\u9a6c\u8d5b\u514b\uff0c\u4ee3\u7801\u957f\u5ea6\u4e0d\u77ed\uff1a<\/p>\n<pre class=\"brush:js\">import processing.video.*;\r\n\r\n\/\/ \u7f29\u653e\u503c\r\nint videoScale = 14;\r\n\/\/ \u6211\u4eec\u7cfb\u7edf\u4e2d\u884c\u548c\u5217\u7684\u6570\u91cf\r\nint cols, rows;\r\n\/\/ capture\u5bf9\u8c61\r\nCapture video;\r\n\r\n\/\/ \u9a6c\u8d5b\u514b\u6a21\u5f0f\u4e2d\u7684\u6e90\u6587\u672c. \u8d8a\u957f\u7684\u5b57\u7b26\u4e32\u4e5f\u8bb8\u4f1a\u51fa\u73b0\u8d8a\u6709\u8da3\u7684\u7ed3\u679c.\r\nString chars = \"fuckyoubaby\" ; \r\n\r\nPFont f;\r\n\r\nvoid setup() {\r\n  size(640,480);\r\n  \/\/ \u5efa\u7acb\u884c\u548c\u5217\r\n  cols = width\/videoScale;\r\n  rows = height\/videoScale;\r\n  video = new Capture(this,cols,rows,15);\r\n  \r\n  \/\/ \u8f7d\u5165\u5b57\u4f53\r\n  \/\/ \u4f7f\u7528\u4e00\u4e2a\u56fa\u5b9a\u5bbd\u5ea6\u7684\u5b57\u4f53. \u5bf9\u5927\u591a\u6570\u5b57\u4f53\u6765\u8bf4, \u4e0d\u540c\u7684\u5b57\u6bcd\u6709\u4e0d\u540c\u7684\u5bbd\u5ea6. \r\n  \/\/ \u5728\u56fa\u5b9a\u5bbd\u5ea6\u5b57\u4f53\u949f, \u6240\u6709\u5b57\u6bcd\u7b49\u5bbd. \r\n  \/\/ \u8fd9\u5bf9\u672c\u4f8b\u5f88\u6709\u7528\uff0c\u56e0\u4e3a\u6211\u4eec\u8981\u5728\u7a7a\u95f4\u5e73\u5747\u6392\u5e03\u8fd9\u4e9b\u5b57\u6bcd \r\n  f = loadFont(\"Courier-Bold-20.vlw\");\r\n}\r\n\r\nvoid draw() {\r\n  background(0);\r\n  \r\n  \/\/ \u4ece\u6444\u50cf\u5934\u8bfb\u53d6\u56fe\u50cf\r\n  if (video.available()) {\r\n    video.read();\r\n  }\r\n  video.loadPixels();\r\n  \r\n  \/\/ \u4f7f\u7528\u4e00\u4e2a\u8ba1\u6570\u5668\u53d8\u91cf\u6765\u6570\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u6bcd\r\n  int charcount = 0;\r\n  \/\/ \u5f00\u59cb\u5faa\u73af\u884c\r\n  for (int j = 0; j < rows; j ++ ) {\r\n    \/\/ \u5f00\u59cb\u5faa\u73af\u5217\r\n    for (int i = 0; i < cols; i ++ ) {\r\n      \r\n      \/\/ \u6211\u4eec\u5728\u54ea?\r\n      int x = i*videoScale;\r\n      int y = j*videoScale;\r\n      \r\n      \/\/ \u5728\u50cf\u7d20\u6570\u7ec4\u5185\u5bfb\u627e\u5408\u9002\u7684\u989c\u8272\r\n      color c = video.pixels[i + j*video.width];\r\n      \/\/ \u663e\u793a\u5b57\u7b26\u4e32\u4e2d\u7684\u5404\u4e2a\u5b57\u6bcd\u6765\u66ff\u4ee3\u77e9\u5f62\r\n      textFont(f);\r\n      fill(c);\r\n      \r\n      \/\/ \u6587\u672c\u5185\u7684\u4e00\u4e2a\u5b57\u6bcd\u5728\u50cf\u7d20\u4f4d\u7f6e\u663e\u793a\u5e76\u88ab\u67d3\u8272. \r\n      \/\/ \u4e00\u4e2a\u8ba1\u6570\u5668\u53d8\u91cf\u2014\u2014 \"charcount\"\u88ab\u7528\u6765\u6bcf\u6b21\u89e6\u53d1\u4e00\u4e2a\u5b57\u7b26\u4e32\u5185\u7684\u5b57\u6bcd.\r\n      text(chars.charAt(charcount),x,y);\r\n      \r\n      \/\/ \u7ee7\u7eed\u4e0b\u4e00\u4e2a\u5b57\u6bcd\r\n      charcount = (charcount + 1) % chars.length();\r\n    }\r\n  }\r\n}<\/pre>\n<p>21. \u8ba9\u5b57\u6bcd\u6839\u636e\u4eae\u5ea6\u8c03\u6574\u5927\u5c0f\uff0c\u4f60\u53ea\u9700\u52a0\u5165\u4ee5\u4e0b\u51e0\u884c(\u5982\u679c\u4f60\u4e0d\u60f3\u8981\u5f69\u8272\u800c\u53ea\u8981\u9ed1\u767d\uff0c\u90a3\u4e48\u5c06\u5173\u4e8e\u989c\u8272\u7684\u51e0\u884c\u6ce8\u91ca\u6389\u5373\u53ef)\uff0c\u4e0d\u8fc7\u8bb0\u5f97\u4f7f\u7528createFont()\u51fd\u6570\u521b\u5efa\u5b57\u4f53\uff0c\u56e0\u4e3a\u8fd9\u6837\u521b\u5efa\u7684\u5b57\u4f53\u4e0d\u4f1a\u56e0\u4e3a\u7f29\u653e\u800c\u5931\u771f\uff1a<br \/>\n<figure id=\"attachment_837\" aria-describedby=\"caption-attachment-837\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/8.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/8-300x225.jpg\" alt=\"\u4eae\u5ea6\u8c03\u6574\u5b57\u4f53\u5927\u5c0f\" title=\"\u4eae\u5ea6\u8c03\u6574\u5b57\u4f53\u5927\u5c0f\" width=\"300\" height=\"225\" class=\"size-medium wp-image-837\" srcset=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/8-300x225.jpg 300w, https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2009\/12\/8.jpg 630w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-837\" class=\"wp-caption-text\">\u4eae\u5ea6\u8c03\u6574\u5b57\u4f53\u5927\u5c0f<\/figcaption><\/figure><\/p>\n<pre class=\"brush:js\">float b = brightness(video.pixels[i + j*video.width]);\r\nfloat fontSize = 36 * (b \/ 255);\r\ntextSize(fontSize);<\/pre>\n<p>\u867d\u7136\u80fd\u8fd0\u884c\u6210\u529f\uff0c\u4f46\u6211\u5374\u6301\u7eed\u7684\u5f97\u5230\u9519\u8bef\u63d0\u793a\uff1a\u201cThu Dec  3 23:53:34 xxx.local java[431] <Error>: CGAffineTransformInvert: singular matrix.\u201d\u3002\u5173\u4e8e\u8fd9\u70b9\uff0c\u6211\u6b63\u5728\u7b49Daniel\u56de\u7b54\u3002<\/p>\n<p>22. \u6587\u672c\u540c\u6837\u53ef\u4ee5\u5b9e\u73b0\u4f4d\u79fb\u4e0e\u65cb\u8f6c\uff1a<\/p>\n<pre class=\"brush:js\">PFont f;\r\nString message = \"\u8fd9\u6bb5\u6587\u672c\u6b63\u5728\u65cb\u8f6c\";\r\nfloat theta;\r\n\r\nvoid setup() {\r\n  size(200,200);\r\n  f = createFont(\"Arial\", 20, true);\r\n}\r\n\r\nvoid draw() {\r\n  \r\n  background(255);\r\n  fill(0);\r\n  textFont(f);                 \/\/ \u8bbe\u7f6e\u5b57\u4f53\r\n  translate(width\/2,height\/2); \/\/ \u7531\u4e2d\u70b9\u65cb\u8f6c\r\n  rotate(theta);               \/\/ \u4ee5theta\u65cb\u8f6c\r\n  textAlign(CENTER) ;\r\n  \r\n  \/\/ \u5728\u5e73\u79fb\u548c\u65cb\u8f6c\u540e\u8fd9\u6bb5\u6587\u672c\u5c45\u4e2d\u5bf9\u9f50\u5e76\u663e\u793a\u5728(0,0). \r\n  \/\/ \u5982\u679c\u4f60\u5fd8\u4e86\u5e73\u79fb\u548c\u65cb\u8f6c\uff0c\u8fd4\u56de\u53bb\u590d\u4e60\u4e00\u4e0b\u5427.\r\n  text(message,0,0); \r\n  \r\n  \/\/ \u589e\u52a0\u65cb\u8f6c\uff08\u52a0 \u4e3a\u987a\u65f6\u9488\uff09\r\n  theta += 0.05; \r\n}<\/pre>\n<p>23. \u662f\u7684\uff0c\u5982\u4e0a\u4f8b\u53ef\u89c1\uff0cp5\u652f\u6301\u5e76\u53ef\u6b63\u786e\u663e\u793a\u4e2d\u6587\uff0c\u4f46\u662f\u5b83\u5e76\u4e0d\u5141\u8bb8\u4f60\u5728\u7a0b\u5e8f\u4e2d\u76f4\u63a5\u8f93\u5165\u4e2d\u6587\uff0c\u6ca1\u4e8b\uff0c\u5728\u6587\u672c\u7f16\u8f91\u5668\u91cc\u5199\u597d\u518d\u628a\u5b83\u4eec\u7c98\u8d34\u8fdb\u53bb\u5c31\u597d\u4e86\uff5e<\/p>\n<p>24. \u5982\u679c\u4f60\u8981\u65b0\u8d77\u4e00\u884c\uff0c\u53ef\u4ee5\u8fd9\u4e48\u5199\uff1a<\/p>\n<pre class=\"brush:js\">String message = \"\u8fd9\u662f\u7b2c\u4e00\u884c\\n\u8fd9\u662f\u7b2c\u4e8c\u884c\";<\/pre>\n<p>\u201c\\\u201d\u610f\u601d\u662f\"\u65b0\u7684\u4e00\u884c\"\u3002\u5728Java\u4e2d\uff0c\u4e0d\u53ef\u89c1\u5b57\u6bcd\u53ef\u4ee5\u4e0e\u4e00\u4e2a\u201c\u8f6c\u4e49\u5e8f\u5217(escape sequence)\u201d\u4e00\u8d77\u5317\u6cb3\u5e76\u5230\u4e00\u4e2a\u5b57\u7b26\u4e32\u5185\u2014\u2014\u4e00\u4e2a\u659c\u6760\"\\\"\u4f34\u968f\u4e00\u4e2a\u5b57\u6bcd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7528\u6cd5\uff1a<br \/>\n\\n\u2014\u65b0\u7684\u4e00\u884c<br \/>\n\\r\u2014\u56de\u8f66<br \/>\n\\t\u2014tab<br \/>\n\\\u2019\u2014\u5355\u5f15\u53f7<br \/>\n\\\u201d\u2014\u53cc\u5f15\u53f7<br \/>\n\\\\\u2014\u659c\u6760<\/p>\n<p>25. \u5728\u4e00\u4e9b\u5236\u56fe\u8f6f\u4ef6\u4e2d\uff0c\u8981\u6c42\u4e00\u4e32\u6587\u672c\u4e2d\u6bcf\u4e2a\u5b57\u7b26\u90fd\u5f97\u72ec\u7acb\u6e32\u67d3\u3002\u5728p5\u4e2d\uff0c\u8fd9\u6837\u7684\u89e3\u51b3\u65b9\u5f0f\u662f\u5faa\u73af\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u6bcf\u6b21\u663e\u793a\u4e00\u4e2a\u5b57\u7b26\u3002<\/p>\n<pre class=\"brush:js\">\/\/ \u7b2c\u4e00\u4e2a\u5b57\u6bcd\u5728\u4f4d\u4e8e10\u4e2a\u50cf\u7d20\u7684\u6c34\u5e73\u4f4d\u7f6e\r\nint x = 10;   \r\nfor (int i = 0; i < message.length(); i++ )  {\r\n  \/\/  \u4f7f\u7528charAt()\u51fd\u6570\u4f7f\u6bcf\u6b21\u663e\u793a\u4e00\u4e2a\u5b57\u7b26 \r\n  text(message.charAt(i), x, height\/2);\r\n  \/\/ \u6bcf\u4e2a\u5b57\u7b26\u95f4\u95f4\u969410\u4e2a\u50cf\u7d20   \r\n  x += 10; \r\n}<\/pre>\n<p>26. \u547c\u53eb\u6bcf\u4e2a\u5b57\u7b26\u7684text()\u51fd\u6570\u7ed9\u4e86\u6211\u4eec\u4e4b\u540e\u7684\u4f8b\u5b50\u66f4\u591a\u7684\u53d1\u6325\u7a7a\u95f4\uff08\u67d3\u8272\uff0c\u8bbe\u7f6e\u5927\u5c0f\uff0c\u5728\u4e00\u4e2a\u5b57\u7b26\u4e32\u5185\u5355\u72ec\u653e\u7f6e\u5b57\u7b26\uff09\u300210\u4e2a\u50cf\u7d20\u7684\u95f4\u9694\u4e0d\u4e00\u5b9a\u51c6\u786e\uff0c\u56e0\u4e3a\u4e0d\u4e00\u5b9a\u6bcf\u4e2a\u5b57\u7b26\u7684\u5bbd\u5ea6\u90fd\u662f10\u3002\u51c6\u786e\u7684\u95f4\u9694\u5728\u4e0b\u4f8b\u4e2d\u7531textWidth()\u5b9e\u73b0\u3002\u6ce8\u610f\u5b83\u662f\u5982\u4f55\u5728\u968f\u673a\u5b57\u7b26\u5927\u5c0f\u7684\u60c5\u51b5\u4e0b\u4ecd\u7136\u4fdd\u6301\u5408\u9002\u7684\u95f4\u9694\u7684\uff1a<\/p>\n<pre class=\"brush:js\">PFont f;   \r\nString message = \"oNEwAY\u662f\u4e00\u652f\u6765\u81ea\u6606\u660e\u7684\u540e\u6447\u6eda\u4e50\u961f\";   \r\n\r\nvoid setup()  {   \r\n  size(500,200);   \r\n  f = createFont( \" Arial \" ,12,true);      \r\n}    \r\n\r\nvoid draw()  {  \r\n  background(255);\r\n  fill(0);\r\n  textFont(f,12);  \r\n  int x = 10;   \r\n  for (int i = 0; i < message.length(); i++ )  {   \r\n    textSize(random(12,36));   \r\n    text(message.charAt(i), x, height\/2);   \r\n    x += textWidth(message.charAt(i)); \r\n  }\r\n}<\/pre>\n<p>\u6211\u6ce8\u610f\u5230\u5982\u679c\u8ba9\u4e0a\u8fb9\u8fd9\u6bb5\u4ee3\u7801\u4e00\u76f4\u8dd1\u7684\u8bdd\uff0c\u6700\u540e\u4f1a\u505c\u6b62\uff08\u56e0\u4e3a\u51fa\u9519\u4e86..\uff09\uff0c\u89e3\u51b3\u529e\u6cd5\u662f\uff0c\u8981\u4e48\u4f60\u52a0\u4e2anoLoop();\uff0c\u8981\u4e48\u4f60\u628a\u5b83\u4ecedraw()\u91cc\u8fb9\u7ed9\u6574\u51fa\u6765\uff1a<\/p>\n<pre class=\"brush:js\">PFont f;   \r\nString message = \"oNEwAY\u662f\u4e00\u652f\u6765\u81ea\u6606\u660e\u7684\u540e\u6447\u6eda\u4e50\u961f\";   \r\n\r\nsize(500,200);   \r\nf = createFont( \" Arial \" ,12,true);\r\nbackground(255);\r\nfill(0);\r\ntextFont(f,12);  \r\nint x = 10;   \r\nfor (int i = 0; i < message.length(); i++ )  {   \r\n  textSize(random(12,36));   \r\n  text(message.charAt(i), x, height\/2);   \r\n  x += textWidth(message.charAt(i));    \r\n}<\/pre>\n<p>\u7136\u540e\u6211\u53d1\u73b0\u5728\u8fd9\u6837\u7684\u60c5\u5f62\u4e0b\uff0c\u4f7f\u7528\"\\n\"\u6362\u884c\u7684\u65b9\u5f0f\u662f\u6ca1\u7528\u7684\u3002<\/p>\n<p>27. \u7528\u81ea\u9002\u5e94\u95f4\u9694\u91cd\u505a\u7b2c\u4e00\u4e2a\u5b57\u6bcd\u9a6c\u8d5b\u514b\u7684\u4f8b\u5b50\uff1a<\/p>\n<pre class=\"brush:js\">import processing.video.*;\r\n\r\n\/\/ \u7f29\u653e\u6bd4\u4f8b\r\nint videoScale = 16;\r\n\/\/ \u884c\u6570\u548c\u5217\u6570\r\nint cols, rows;\r\n\/\/ capture\u5bf9\u8c61\r\nCapture video;\r\n\r\n\/\/ \u4e00\u4e2a\u5b57\u7b26\u4e32\u548c\u5b57\u4f53\r\nString chars = \"oNEwAYisapostrockbandfromkunmingyunnanchina\";\r\nPFont f;\r\n\r\nvoid setup() {\r\n  size(640, 480);\r\n  \/\/\u5efa\u7acb\u884c\u548c\u5217\r\n  cols = width\/videoScale;\r\n  rows = height\/videoScale;\r\n  video = new Capture(this,cols,rows,15);\r\n\r\n  \/\/ \u8f7d\u5165\u5b57\u4f53\r\n  f = createFont(\"Arial\",18,true);\r\n}\r\n\r\nvoid draw(){ \r\n  \/\/ \u4ece\u6444\u50cf\u5934\u8bfb\u53d6\u56fe\u50cf\r\n  if (video.available()) {\r\n    video.read(); \r\n  }\r\n  video.loadPixels();\r\n  \/\/image(video,0,0,width,height);\r\n\r\n  background(0);\r\n\r\n  \/\/ \u4f7f\u7528\u4e00\u4e2a\u8ba1\u6570\u5668\r\n  int charcount = 0;\r\n\r\n  \/\/ \u5f00\u59cb\u5faa\u73af\u884c\r\n  for ( int j = 0; j < rows;j++) {\r\n    \/\/ \u73b0\u5728\u5f00\u59cb\u5faa\u73af\u5217, \u800c\u4e0d\u662f\u9010\u4e00\u5faa\u73af\u50cf\u7d20\r\n    \/\/ \u6211\u4eec\u57fa\u4e8e\u5b57\u7b26\u5bbd\u5ea6\u4f7f\u7528\u4e00\u4e2a\u6d6e\u70b9\u53d8\u91cfx\u6765\u8fdb\u884c\u79fb\u52a8\r\n    float x = 0;\r\n    while (x < width) {\r\n      \/\/ \u6211\u4eec\u5782\u76f4\u4f4d\u7f6e\u5728\u54ea?\r\n      int y = j*videoScale;\r\n      \/\/ \u6211\u4eec\u6c34\u5e73\u4f4d\u7f6e\u5728\u54ea? \u8f6c\u5316\u5230\u6574\u6570, \u7f29\u5c0f, \u5e76\u786e\u4fdd\u6211\u4eec\u59cb\u7ec8\u4f4d\u4e8e\u8424\u5e55\u5185 \r\n      int pix = constrain((int) (x \/ videoScale),0,cols-1);\r\n\r\n      \/\/ \u5728\u50cf\u7d20\u6570\u7ec4\u5185\u9009\u53d6\u6b63\u786e\u7684\u989c\u8272\r\n      color c = video.pixels[pix+j*video.width]; \r\n\r\n      \/\/ \u663e\u793a\u5b57\u7b26\u4e32\u4e2d\u7684\u72ec\u7acb\u5b57\u7b26\r\n      \/\/ \u66ff\u4ee3\u77e9\u5f62\r\n      textFont(f);\r\n      fill(c);\r\n      char ch = chars.charAt(charcount);\r\n      text(ch,x,y);\r\n      \/\/ \u7ee7\u7eed\u4e0b\u4e00\u4e2a\u5b57\u7b26, \u5230\u6700\u672b\u7684\u65f6\u5019\u91cd\u65b0\u4ece0\u5f00\u59cb\u5faa\u73af\r\n      charcount = (charcount + 1) % chars.length();\r\n      \/\/ \u4f9d\u636e\u5b57\u7b26\u5bbd\u5ea6\u79fb\u52a8x\r\n      x += textWidth(ch);\r\n    }\r\n  }\r\n}<\/pre>\n<p>28. \u8fd9\u79cd\u65b9\u6cd5\u540c\u6837\u53ef\u4ee5\u7528\u4e8e\u5404\u4e2a\u5b57\u7b26\u72ec\u7acb\u8fd0\u52a8\u7684\u6848\u4f8b\u3002\u4e0b\u8fb9\u8fd9\u4e2a\u4f8b\u5b50\u4f7f\u7528\u9762\u5411\u5bf9\u8c61\u5f97\u65b9\u5f0f\u5236\u4f5c\uff0c\u8ba9\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5b57\u7b26\u6210\u4e3a\u4e00\u4e2a\u5bf9\u8c61\uff0c\u4f7f\u5b83\u4eec\u65e2\u80fd\u5728\u9002\u5f53\u7684\u4f4d\u7f6e\u663e\u793a\u53c8\u80fd\u5728\u8424\u5e55\u5185\u72ec\u7acb\u8fd0\u52a8\uff1a<\/p>\n<pre class=\"brush:js\">PFont f;\r\nString message = \"oNEwAY\u662f\u4e00\u652f\u6765\u81ea\u4e91\u5357\u6606\u660e\u7684\u540e\u6447\u6eda\u4e50\u961f\";\r\n\r\n\/\/ \u5b57\u6bcd\u6570\u7ec4\r\nLetter[] letters;\r\n\r\nvoid setup() {\r\n  size(460,200);\r\n  \r\n  \/\/ \u8f7d\u5165\u5b57\u4f53\r\n  f = createFont(\"Arial\", 20, true);\r\n  textFont(f);\r\n  \r\n  \/\/ \u521b\u5efa\u4e0e\u5b57\u7b26\u4e32\u540c\u6837\u5927\u5c0f\u7684\u6570\u7ec4\r\n  letters = new Letter[message.length()];\r\n  \r\n  \/\/ \u5728\u6b63\u786e\u7684x\u4f4d\u7f6e\u521d\u59cb\u5316\u5b57\u6bcd\r\n  int x = 66;\r\n  for (int i = 0; i < message.length(); i ++ ) {\r\n    \/\/ \u5b57\u7b26\u5bf9\u8c61\u4f9d\u5b83\u4eec\u5728\u5b57\u7b26\u4e32\u4e2d\u7684\u4f4d\u7f6e\u53ca\u663e\u793a\u521d\u59cb\u5316\r\n    letters[i] = new Letter(x,100,message.charAt(i)); \r\n    x += textWidth(message.charAt(i));\r\n  }\r\n}\r\n\r\nvoid draw() {\r\n  background(255);\r\n  for (int i = 0; i < letters.length; i ++ ) {\r\n    \r\n    \/\/ \u663e\u793a\u5168\u90e8\u5b57\u7b26\r\n    letters[i].display();\r\n    \r\n    \/\/ \u5982\u679c\u9f20\u6807\u6309\u4e0b\uff0c\u5b57\u7b26\u5f00\u59cb\u6296\u52a8\r\n    \/\/ \u5982\u679c\u653e\u5f00\uff0c\u5b83\u4eec\u56de\u5f52\u539f\u4f4d\r\n    if (mousePressed) {\r\n      letters[i].shake();\r\n    } else {\r\n      letters[i].home();\r\n    }\r\n  }\r\n}\r\n\r\n\/\/ \u4e00\u4e2a\u63cf\u8ff0\u5355\u72ec\u5b57\u7b26\u7684\u7c7b\r\nclass Letter {\r\n  char letter;\r\n  \r\n  \/\/ \u5bf9\u8c61\u77e5\u9053\u5b83\u6700\u521d\u7684\u4f4d\u7f6e\r\n  float homex,homey;\r\n  \r\n  \/\/ \u4ee5\u53ca\u5b83\u73b0\u5728\u7684\u4f4d\u7f6e\r\n  float x,y;\r\n  \r\n  Letter(float x_, float y_, char letter_) {\r\n    homex = x = x_;\r\n    homey = y = y_;\r\n    letter = letter_;\r\n  }\r\n  \r\n  \/\/ \u663e\u793a\u5b57\u7b26\r\n  void display() {\r\n    fill(0);\r\n    textAlign(LEFT);\r\n    text(letter,x,y);\r\n  }\r\n  \r\n  \/\/ \u968f\u673a\u79fb\u52a8\u5b57\u7b26\r\n  void shake() {\r\n    x += random(-2,2);\r\n    y += random(-2,2);\r\n  }\r\n  \r\n  \/\/ \u5728\u4efb\u4f55\u4e00\u70b9, \u901a\u8fc7\u547c\u53ebhome()\u51fd\u6570\u4fbf\u53ef\u5c06\u4f4d\u7f6e\u4ece\u5f53\u524d\u91cd\u7f6e\u5230\u6700\u521d\u3002\r\n  void home() { \r\n    x = homex;\r\n    y = homey;\r\n  }\r\n}<\/pre>\n<p>29. \u8fd9\u79cd\u65b9\u6cd5\u8fd8\u5141\u8bb8\u6211\u4eec\u5c06\u6587\u5b57\u9644\u4e8e\u4e00\u4e2a\u66f2\u7ebf\u4e0a\u3002\u5728\u8fd9\u4e48\u505a\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u770b\u770b\u5982\u4f55\u5c06\u4e00\u7cfb\u5217\u77e9\u5f62\u9644\u4e8e\u4e00\u4e2a\u66f2\u7ebf\u4e0a\uff1a<\/p>\n<pre class=\"brush:js\">PFont f;\r\n\r\n\/\/ \u5706\u5f62\u7684\u534a\u5f84\r\nfloat r = 100;\r\n\r\n\/\/ \u77e9\u5f62\u7684\u957f\u3001\u5bbd\r\nfloat w = 40;\r\nfloat h = 40;\r\n\r\nvoid setup() {\r\n  size(320,320);\r\n  smooth();\r\n}\r\n\r\nvoid draw() {\r\n  background(255);\r\n  \r\n  \/\/ \u4ece\u4e2d\u5fc3\u5f00\u59cb\u5e76\u753b\u5706\r\n  translate(width\/2, height\/2);\r\n  noFill();\r\n  stroke(0);\r\n  \/\/ \u8fd9\u4e2a\u5706\u5c31\u662f\u6211\u4eec\u7684\u66f2\u7ebf\r\n  ellipse(0, 0, r*2, r*2); \r\n  \/\/ 10\u4e2a\u77e9\u5f62\u56f4\u7ed5\u66f2\u7ebf\r\n  int totalBoxes = 10;\r\n  \/\/ \u6211\u4eec\u5fc5\u987b\u4fdd\u6301\u8bb0\u5f55\u56f4\u7ed5\u66f2\u7ebf\u7684\u4f4d\u7f6e\r\n  float arclength = 0;\r\n  \/\/ \u4e3a\u6bcf\u4e2a\u77e9\u5f62\r\n  for (int i = 0; i < totalBoxes; i ++ ) {\r\n    \/\/ \u6bcf\u4e2a\u76d2\u5b50\u90fd\u5c45\u4e2d\uff0c\u56e0\u6b64\u6211\u4eec\u5c06\u5b83\u4eec\u79fb\u52a8\u534a\u4e2a\u8eab\u4f4d\r\n    arclength += w\/2; \r\n    \r\n    \/\/ \u89d2\u7684\u5f27\u5ea6\u7b49\u4e8e\u5f27\u957f\u9664\u4ee5\u534a\u5f84\r\n    float theta = arclength \/ r;\r\n    \r\n    pushMatrix();\r\n    \/\/ \u6781\u5750\u6807\u5230\u7b1b\u5361\u5c14\u5750\u6807\u7684\u8f6c\u6362\r\n    translate(r*cos(theta) , r*sin(theta));\r\n    \/\/ \u65cb\u8f6c\u77e9\u5f62\r\n    rotate(theta);\r\n    \r\n    \/\/ \u663e\u793a\u77e9\u5f62\r\n    fill(0, 100);\r\n    rectMode(CENTER);\r\n    rect(0, 0, w, h);\r\n    popMatrix();\r\n    \r\n    \/\/ \u518d\u6b21\u79fb\u52a8\u534a\u4e2a\u8eab\u4f4d\r\n    arclength += w\/2;\r\n  }\r\n}<\/pre>\n<p>30. \u5c3d\u7ba1\u4f60\u89c9\u5f97\u8fd9\u4e2a\u4f8b\u5b50\u7684\u6570\u5b66\u53ef\u80fd\u6709\u70b9\u96be\uff0c\u4f46\u5b83\u7684\u8fd0\u884c\u7ed3\u679c\u5df2\u7ecf\u5411\u6211\u4eec\u63ed\u793a\u4e86\u4e0b\u4e00\u6b65\u3002\u6211\u4eec\u9700\u8981\u505a\u7684\u53ea\u662f\u7528\u5b57\u7b26\u6765\u586b\u5165\u5404\u4e2a\u77e9\u5f62\u3002\u5e76\u4e14\u56e0\u4e3a\u6bcf\u4e2a\u5b57\u7b26\u5e76\u975e\u540c\u7b49\u5bbd\u5ea6\uff0c\u6240\u4ee5\u76f8\u5bf9\"w\"\u8fd9\u4e2a\u5e38\u91cf\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u4e00\u4e2a\u53d8\u91cf\uff0c\u8fd9\u4e2a\u5bbd\u5ea6\u7531textWidth()\u51fd\u6570\u5f97\u5230\uff1a<\/p>\n<pre class=\"brush:js\">\/\/ \u88ab\u663e\u793a\u7684\u6587\u672c\r\nString message = \"\u56f4\u7ed5\u66f2\u7ebf\u7684\u6c49\u5b57\u4eec\";\r\nPFont f;\r\n\r\n\/\/ \u5706\u534a\u5f84\r\nfloat r = 100;\r\n\r\nvoid setup() {\r\n  size(320,320);\r\n  f = createFont(\"Georgia\",40,true);\r\n  textFont(f);\r\n   \/\/ \u6587\u672c\u5fc5\u987b\u5c45\u4e2d!\r\n  textAlign(CENTER);\r\n  smooth();\r\n}\r\n\r\nvoid draw() {\r\n  background(255);\r\n  \r\n  \/\/ \u4ece\u4e2d\u5fc3\u5f00\u59cb\u5e76\u7ed8\u5236\u5706\u5f62\r\n  translate(width\/2, height\/2);\r\n  noFill();\r\n  stroke(0);\r\n  ellipse(0, 0, r*2, r*2);\r\n  \r\n  \/\/ \u4fdd\u5b58\u4f4d\u7f6e\r\n  float arclength = 0;\r\n  \r\n  \/\/ \u4e3a\u6bcf\u4e2a\u5b57\r\n  for (int i = 0; i < message.length(); i ++ ) {\r\n    \r\n    \/\/ \u5b57\u7b26\u53ca\u5176\u5bbd\u5ea6\r\n    char currentChar = message.charAt(i);\r\n    \/\/ \u6211\u4eec\u67e5\u8be2\u6bcf\u4e2a\u5b57\u7b26\u7684\u5bbd\u5ea6\u6765\u66ff\u4ee3\u56fa\u5b9a\u7684\u5bbd\u5ea6.\r\n    float w = textWidth(currentChar); \r\n    \/\/ \u6bcf\u4e2a\u5b57\u90fd\u662f\u5c45\u4e2d\u5bf9\u9f50\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u79fb\u52a8\u534a\u4e2a\u8eab\u4f4d\r\n    arclength += w\/2;\r\n    \r\n    \/\/ \u89d2\u7684\u5f27\u5ea6\u7b49\u4e8e\u5f27\u957f\u9664\u4ee5\u534a\u5f84\r\n    \/\/ \u901a\u8fc7\u589e\u52a0PI\u7531\u5706\u5f62\u5de6\u8fb9\u5f00\u59cb\r\n    float theta = PI + arclength \/ r;\r\n    \r\n    pushMatrix();\r\n    \r\n    \/\/ \u6781\u5750\u6807\u5230\u7b1b\u5361\u5c14\u5750\u6807\u7684\u8f6c\u6362\u5141\u8bb8\u6211\u4eec\u627e\u5230\u6cbf\u7740\u66f2\u7ebf\u7684\u70b9.\r\n    translate(r*cos(theta), r*sin(theta)); \r\n    \/\/ \u65cb\u8f6c\u6587\u5b57 (\u62b5\u6d88\u65cb\u8f6c90\u5ea6)\r\n    rotate(theta + PI\/2); \r\n    \r\n    \/\/ \u663e\u793a\u6587\u5b57\r\n    fill(0);\r\n    text(currentChar,0,0);\r\n    \r\n    popMatrix();\r\n    \r\n    \/\/ \u518d\u6b21\u79fb\u52a8\u534a\u4e2a\u8eab\u4f4d\r\n    arclength += w\/2;\r\n  }\r\n}<\/pre>\n<p>31. \u4e0b\u8fb9\u662f\u4e66\u91cc\u7684\u7ec3\u4e60\uff0c\u8ba9\u968f\u673a\u4f4d\u7f6e\u7684\u6587\u672c\u5f52\u4f4d\uff0c\u7136\u540e\u7ee7\u7eed\u4e0a\u8fb9\u90a3\u4e2a\u4f8b\u5b50\uff0c\u9f20\u6807\u70b9\u51fb\uff0c\u6296\u52a8\uff0c\u653e\u5f00\uff0c\u5f52\u4f4d\u3002\u8fd8\u8981\u7528\u5230\u4e00\u4e9b\u65b0\u51fd\u6570\uff0c\u54e6\u4e5f\uff0c\u6211\u4e0d\u4f1a\u505a\uff0c\u76f4\u63a5\u770b\u7b54\u6848\uff0c\u6162\u6162\u5b66\u4e60\u5427\u3002\u3002\u3002\uff1a<\/p>\n<pre class=\"brush:js\">PFont f;\r\nString message = \"\u547c\u5566\u5566\u554a\u547c\u5566\u5566\uff0c\u968f\u673a\u6587\u5b57\u4eec\u5404\u5f52\u5176\u4f4d!\";\r\n\/\/ \u6587\u5b57\u5bf9\u8c61\u6570\u7ec4\r\nLetter[] letters;\r\n\r\nvoid setup() {\r\n  size(400, 200);\r\n  \/\/ \u8f7d\u5165\u5b57\u4f53\r\n  f = createFont(\"Georgia\",20,true);\r\n  textFont(f);\r\n  \r\n  \/\/ \u4ee5\u5b57\u7b26\u4e32\u5927\u5c0f\u521b\u5efa\u6570\u7ec4\r\n  letters = new Letter[message.length()];\r\n  \/\/ \u5728\u6b63\u786e\u7684x\u4f4d\u7f6e\u521d\u59cb\u5316\u6570\u7ec4\r\n  int x = 30;\r\n  for (int i = 0; i < message.length(); i++) {\r\n    letters[i] = new Letter(x,height\/2,message.charAt(i)); \r\n    x += textWidth(message.charAt(i));\r\n  }\r\n}\r\n\r\nvoid draw() { \r\n  background(255);\r\n  for (int i = 0; i < letters.length; i++) {\r\n    \/\/ Display all letters\r\n    letters[i].display();\r\n    \r\n    \/\/ If the mouse is pressed the letters shake\r\n    \/\/ If not, they return to their original location\r\n    if (mousePressed) {\r\n      letters[i].shake();\r\n    } else {\r\n      letters[i].home();\r\n    }\r\n  }\r\n}\r\n\r\n\/\/ A class to describe a single Letter\r\nclass Letter {\r\n  char letter;\r\n  \/\/ The object knows its original \"home\" location\r\n  float homex,homey;\r\n  \/\/ As well as its current location\r\n  float x,y;\r\n  \/\/ And an angle of rotation\r\n  float theta;\r\n\r\n  Letter (float x_, float y_, char letter_) {\r\n    homex = x = x_;\r\n    homey = y = y_;\r\n    x = random(width);\r\n    y = random(height);\r\n    theta = random(TWO_PI);\r\n    letter = letter_; \r\n  }\r\n\r\n  \/\/ Display the letter\r\n  void display() {\r\n    fill(0);\r\n    textAlign(LEFT);\r\n    \/\/ \u7528\u6237\u4f4d\u79fb\u548c\u65cb\u8f6c\u6765\u7ed8\u5236\u6587\u5b57\r\n    pushMatrix();\r\n    translate(x,y);\r\n    rotate(theta);\r\n    text(letter,0,0);\r\n    popMatrix();\r\n  }\r\n\r\n  \/\/ \u968f\u673a\u79fb\u52a8\u6587\u5b57\r\n  void shake() {\r\n    x += random(-2,2);\r\n    y += random(-2,2);\r\n    theta += random(-0.5,0.5);\r\n  }\r\n\r\n  \/\/ \u7528lerp\u8ba9\u6587\u5b57\u5f52\u4f4d!\r\n  void home() {\r\n    x = lerp(x,homex,0.05);\r\n    y = lerp(y,homey,0.05);\r\n    theta = lerp(theta,0,0.05);\r\n  }\r\n}<\/pre>\n<p>lerp()\u2014\u2014\u4f9d\u4e00\u4e2a\u7279\u6b8a\u7684\u589e\u91cf\u8ba1\u7b97\u4e24\u4e2a\u6570\u5b57\u95f4\u7684\u4e00\u4e2a\u6570\u5b57\u3002\u53c2\u6570amt\u662f\u4e24\u4e2a\u503c\u95f4\u7684\u7be1\u6539\uff08interpolate\uff09\u603b\u6570\uff0c\u6bd4\u5982\uff0c0.0\u7b49\u4e8e\u7b2c\u4e00\u4e2a\u503c\uff0c0.1\u975e\u5e38\u9760\u8fd1\u7b2c\u4e00\u4e2a\u503c\uff0c0.5\u5728\u5b83\u4eec\u4e4b\u95f4\uff0c\u7b49\u7b49\u3002lerp\u51fd\u6570\u4fbf\u4e8e\u521b\u5efa\u76f4\u7ebf\u8fd0\u52a8\u4ee5\u53ca\u7ed8\u5236\u70b9\u72b6\u7ebf\u3002<a href=\"http:\/\/processing.org\/reference\/lerp_.html\">\u66f4\u591a<\/a>\u3002<br \/>\n\u662f\u7684\uff0c\u8c8c\u4f3c\u6bd4\u8f83\u96be\u7406\u89e3\uff0c\u4f46\u6211\u60f3\u4e86\u4e2a\u7b28\u529e\u6cd5\uff0c\u5217\u5370lerp\u51fa\u6765\u7684\u503c\uff0c\u7136\u540e\u6162\u6162\u53bb\u7422\u78e8\u5b83\u7684\u7528\u6cd5\u3002\u8fd8\u662f\u633a\u7ba1\u7528\u7684\uff5e<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. \u672c\u8bfe\u6211\u4eec\u8981\u5b66\u4e00\u4e2a\u65b0\u7684\u7c7b\uff0c\u79f0\u4e3a\u5b57\u7b26\u4e32\uff08string\uff09\u3002\u5bf9\u6211\u4eec\u6765\u8bf4\uff0c\u8fd9\u5e76\u4e0d\u662f\u4e00\u4e2a\u5168\u65b0\u7684\u6982\u5ff5\uff0c\u4e4b\u524d\u6211\u4eec\u4e5f\u66fe\u63a5\u89e6\u8fc7\u5b83\u4eec\uff1a println(&#8220;printing some text to the message window!&#8221;); \/\/ \u5217\u5370\u4e00\u4e2a\u5b57\u7b26\u4e32 PImage img = loadImage(&#8220;filename.jpg&#8221;); \/\/ \u4e3a\u6587\u4ef6\u540d\u4f7f\u7528\u4e00\u4e2a\u5b57\u7b26\u4e32 \u8fd9\u6837\u770b\u8d77\u6765\uff0c\u6211\u4eec\u4f3c\u4e4e\u53ef\u4ee5\u7b80\u5355\u7684\u5c06\u5b57\u7b26\u4e32\u7406\u89e3\u4e3a\u201c\u5728\u53cc\u5f15\u53f7\u5185\u7684\u5185\u5bb9\u201d\u3002 2. \u5b57\u7b26\u4e32\u7684\u6838\u5fc3\u5176\u5b9e\u662f\u50a8\u5b58\u5b57\u6bcd\u6570\u7ec4\uff0c\u5982\u679c\u6ca1\u6709string\u7c7b\uff0c\u90a3\u4e48\u6211\u4eec\u8981\u5199\u4e00\u884c\u5b57\u7684\u4ee3\u7801\u53ef\u80fd\u4f1a\u53d8\u6210\uff1a char[] sometext = { &#8216;H&#8217;, &#8216;e&#8217;, &#8216;l&#8217;, &#8216;l&#8217; , &#8216;o&#8217; , &#8216; &#8216;, &#8216;W&#8217; , &#8216;o&#8217; , &#8216;r&#8217;, &#8216;l&#8217; , &#8216;d&#8217;}; \u8fd9\u4e48\u641e\u7edd\u5bf9\u4f1a\u88ab\u641e\u6b7b\uff0c\u5982\u679c\u4f7f\u7528string\u5bf9\u8c61\uff0c\u4e16\u754c\u7acb\u9a6c\u53d8\u5f97\u7b80\u5355\u7f8e\u597d\u8d77\u6765\uff1a String sometext = &#8221; \u5982\u4f55\u505a\u4e00\u4e2a\u5b57\u7b26\u4e32? \u5728\u5f15\u53f7\u95f4\u8f93\u5165\u5b57\u7b26!&#8221;; 3. \u6211\u4eec\u5fc5\u987b\u8bb0\u4f4f\uff0c\u4e00\u4e2astring\u662f\u4e00\u4e2a\u4f34\u968f\u65b9\u6cd5\uff08method\uff09\u7684\u5bf9\u8c61\u3002\u7c7b\u4f3c\u4e8ePImage\u5bf9\u8c61\u53ef\u4ee5\u5728\u5b58\u50a8\u4e00\u4e2a\u56fe\u50cf\u6570\u636e\u7684\u540c\u65f6\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u65b9\u6cd5copy(), loadPixels()\u7b49\u7b49\u3002\u5bf9\u4e8estring\u6765\u8bf4\uff0c\u4e00\u4e2a\u65b9\u6cd5\u662f charAt()\uff0c\u5b83\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\u91cc\u7ed9\u5b9a\u5e8f\u53f7\u7684\u5b57\u6bcd\u3002\u540c\u6570\u7ec4\u4e00\u6837\uff0c\u5b57\u7b26\u4e32\u7684\u7b2c\u4e00\u4e2a\u5b57\u6bcd\u540c\u4e3a\u7b2c0\u53f7\u3002 4. \u901a\u8fc7Daniel\u968f\u540e\u51fa\u7684\u4e00\u9898\u6211\u610f\u5916\u7684\u53d1\u73b0\uff0c\u5728\u4e00\u4e2a\u5b57\u7b26\u4e32\u5185\uff0c\u7a7a\u683c\u4e5f\u7b97\u4e00\u4e2a\u201c\u5b57\u6bcd\u201d\uff0c\u4e5f\u5360\u5e8f\u53f7\uff0c\u65e0\u8bba\u8fd9\u4e2a\u7a7a\u683c\u51fa\u73b0\u5728\u5b57\u7b26\u4e32\u5185\u7684\u4efb\u4f55\u5730\u65b9\u3002 5. [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[57],"tags":[58],"class_list":["post-821","post","type-post","status-publish","format-standard","hentry","category-processing","tag-processing"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=821"}],"version-history":[{"count":11,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/821\/revisions"}],"predecessor-version":[{"id":843,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/821\/revisions\/843"}],"wp:attachment":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}