{"id":943,"date":"2010-02-03T17:10:40","date_gmt":"2010-02-03T09:10:40","guid":{"rendered":"http:\/\/www.ccttours.com\/blog\/?p=943"},"modified":"2010-02-04T15:32:31","modified_gmt":"2010-02-04T07:32:31","slug":"%e6%98%be%e7%a4%ba%e5%b9%b6%e7%bb%98%e5%88%b6%e6%96%87%e6%9c%ac%e6%96%87%e6%a1%a3%e4%b8%adaz%e5%87%ba%e7%8e%b0%e7%9a%84%e6%ac%a1%e6%95%b0","status":"publish","type":"post","link":"https:\/\/learn.travelchinawith.me\/?p=943","title":{"rendered":"\u663e\u793a\u5e76\u7ed8\u5236\u6587\u672c\u6587\u6863\u4e2da~z\u51fa\u73b0\u7684\u6b21\u6570"},"content":{"rendered":"<p>\u8fd9\u662f\u300aLearning Processing\u300b\u7b2c\u5341\u516b\u7ae0\u201c\u6570\u636e\u8f93\u5165\u201d\u7684\u7ec3\u4e6018-10\uff1a\u904d\u5386\u4e00\u4e2a\u6765\u81eaURL\u7684txt\u6587\u672c\uff08\u672c\u7ec3\u4e60\u5185\u6211\u4f7f\u7528\u7684\u662f<a href=\"http:\/\/processing.org\/download\/revisions.txt\">http:\/\/processing.org\/download\/revisions.txt<\/a>\uff09\u4e2d\u7684\u6587\u5b57\uff0c\u7edf\u8ba1\u5b83\u4eec\u5728\u5b57\u6bcd\u8868a~z\u4e2d\u51fa\u73b0\u7684\u9891\u7387\uff0c\u5e76\u663e\u793a\u4e3a\u67f1\u72b6\u6bd4\u4f8b\u56fe\uff08\u5f53\u7136\u4f60\u4e5f\u53ef\u4ee5\u5c06\u5176\u8868\u793a\u4e3a\u5176\u4ed6\u53ef\u89c6\u5316\u6548\u679c\uff09\u3002<a href=\"https:\/\/learn.travelchinawith.me\/wp-content\/uploads\/2010\/02\/p51.gif\">\u5982\u56fe<\/a>\u3002<\/p>\n<p>\u867d\u7136\u8fd8\u6ca1\u8bfb\u5230Ben Fry\u5199\u7684<\u53ef\u89c6\u5316\u6570\u636e>\uff0c\u4f46\u662f\u8fd9\u4e0d\u5c31\u662f\u4e00\u4e2a\u6d3b\u751f\u751f\u7684\u6709\u8da3\u7684\u7ec3\u4e60\u5417\uff1f<br \/>\n<!--more--><\/p>\n<p>\u5728\u7f16\u5199\u4e4b\u521d\uff0c\u9996\u5148\u6211\u60f3\u5230\u7684\u662f\u7528\u4ec0\u4e48\u7c7b\u578b\u7684\u6587\u672c\u6765\u6bd4\u8f83\u3002\u6211\u4eec\u77e5\u9053\u6587\u672c\u53ef\u4ee5\u7531\u4e24\u79cd\u7c7b\u578b\u88abp5\u8868\u8ff0\uff1aString\u548cchar\u3002<\/p>\n<p>\u5bf9\u4e8e\u5b57\u6bcd\u8868\uff0c\u5f88\u597d\u529e\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u4ee5char\u6216String\u6216\u5b57\u7b26\u4e32\u6570\u7ec4\u7684\u7c7b\u578b\u5f97\u5230\u5b83\u3002<br \/>\n\u4ee5\u5b57\u7b26\u4e32\u663e\u793a\uff1a<\/p>\n<pre class=\"brush:processing\">String alphabet = \"abcdefghijklmnopqrstuvwxyz\";<\/pre>\n<p>\u4ee5\u5b57\u7b26\u987a\u5e8f\u663e\u793a\uff1a<\/p>\n<pre class=\"brush:processing\">for(int i=0; i < alphabet.length(); i++) {\r\n  char letter = alphabet.charAt(i);\r\n}<\/pre>\n<p>\u4ee5\u5b57\u7b26\u4e32\u6570\u7ec4\u663e\u793a\uff1a<\/p>\n<pre class=\"brush:processing\">String alphabet = \"a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z\"\r\nString[] letter = split(alphabet, \",\");<\/pre>\n<p>\u5bf9\u4e8e\u90a3\u4efd\u7f51\u7edctxt\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<em>loadStrings()<\/em>\u5c06\u5176\u8f7d\u5165\u4e3a\u4e00\u4e2a\u6570\u7ec4\uff0c\u518d\u4f7f\u7528<em>join()<\/em>\u5c06\u5176\u4e2d\u7684\u5143\u7d20\u7ec4\u5408\u4e3a\u4e00\u4e2a\u957f\u53e5\uff0c<u>\u518d\u7528<em>splitTokens()<\/em>\u5254\u9664\u5176\u4e2d\u6211\u4eec\u4e0d\u9700\u8981\u7684\u6807\u70b9\u540e\u91cd\u65b0\u5c06\u5176\u5206\u914d\u5165\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff08\u7531\u4e8e\u662f\u4ec5\u4ec5\u5173\u4e4e\u4e8e\u5b57\u6bcd\u7684\u95ee\u9898\uff0c\u56e0\u6b64\u4e0d\u505a\u8fd9\u4e00\u6b65\u4e5f\u6ca1\u95ee\u9898\uff0c\u4f30\u8ba1\u4ec5\u4ec5\u4e0e\u8fd0\u7b97\u901f\u5ea6\u6709\u5173\u5427\uff0c\u4f46\u662f\u6211\u53d1\u73b0\u4e24\u79cd\u65b9\u5f0f\u5f97\u5230\u7684\u6700\u540e\u6570\u5b57\u6709\u7ec6\u5fae\u7684\u5dee\u522b\uff0c\u76ee\u524d\u4e0d\u6e05\u695a\u662f\u4ec0\u4e48\u539f\u56e0\u9020\u6210\u7684<\/u>\uff09\u3002<\/p>\n<pre class=\"brush:processing\">\/\/ \u6309txt\u987a\u5e8f\u663e\u793a\r\nchar tletter;\r\nString delimiters = \" ,.?!;:[]+\/()\\\"-#=_'\";\r\n\r\nString url = \"http:\/\/processing.org\/download\/revisions.txt\";\r\nString[] rawtext = loadStrings(url);\r\nString everything = join(rawtext, \"\" );\r\nString[] revisions = splitTokens(everything,delimiters);\r\nString onelongstring = join(revisions,\"\");\r\n\r\nfor (int i = 2000; i < onelongstring.length(); i++ ) {\r\n  tletter = onelongstring.charAt(i);\r\n  print(tletter);\r\n}<\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u9700\u8981\u6ce8\u610f\uff0c\u5404\u79cd\u51fd\u6570\u8fd4\u56de\u7684\u6570\u636e\u7c7b\u578b\uff0c\u56e0\u4e3aString\u53ea\u80fd\u548cString\u6bd4\uff0cchar\u53ea\u80fd\u548cchar\u6bd4\uff0c\u5728\u6bd4\u8f83\u4e4b\u524d\uff0c\u6211\u4eec\u5fc5\u987b\u8981\u5f04\u6e05\u695a\u6211\u4eec\u7684\u53d8\u91cf\u662f\u4ec0\u4e48\u7c7b\u578b\u7684\uff1a<br \/>\n<em><strong>loadStrings()<\/strong><\/em>\u2014\u2014\u8fd4\u56de\u5b57\u7b26\u4e32\u6570\u7ec4\uff1b<br \/>\n<em><strong>join()<\/strong><\/em>\u2014\u2014\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\uff1b<br \/>\n<em><strong>split()\u3001splitTokens()<\/strong><\/em>\u2014\u2014\u8fd4\u56de\u5b57\u7b26\u4e32\u6570\u7ec4\uff1b<br \/>\n<em><strong>charAt()<\/strong><\/em>\u2014\u2014\u8fd4\u56de\u5b57\u7b26\uff08char\uff09\u3002<\/p>\n<p>\u5728\u8fdb\u4e00\u6b65\u7684\u601d\u8003\u4e2d\uff0c\u6211\u4eec\u4f1a\u53d1\u73b0\u5f88\u96be\u5c06txt\u4e2d\u7684\u6587\u5b57\u7531\u6574\u5408\u7684\u4e00\u4e2a\u65e0\u5206\u9694\u7b26\u7684\u957f\u5b57\u7b26\u4e32\u62c6\u5206\u4e3a\u4e00\u4e2a\u4e2a\u5355\u4e2a\u5b57\u6bcd\u7684\u5b57\u7b26\u4e32\uff0c\u5c1d\u8bd5\u4ee5\u4e0b\u5f02\u60f3\u5929\u5f00\u7684\u4ee3\u7801\u5931\u8d25\uff08\u8fd4\u56de\u5185\u5b58\u4e0d\u8db3\u9519\u8bef\uff09\uff1a<\/p>\n<pre class=\"brush:processing\">String delimiters = \" ,.?!;:[]+\/()\\\"-#=_'\";\r\nString url = \"http:\/\/processing.org\/download\/revisions.txt\";\r\nString[] rawtext = loadStrings(url);\r\nString everything = join(rawtext, \"\" );\r\nString[] revisions = splitTokens(everything,delimiters);\r\nString onelongstring = join(revisions,\"\");\r\n\/\/ \u4e8b\u5b9e\u8bc1\u660e\u4e0b\u9762\u8fd9\u5173\u952e\u4e00\u6b65\u65e0\u6cd5\u6267\u884c\r\n\/\/ \u610f\u5473\u7740\u6211\u4eec\u65e0\u6cd5\u5f97\u5230txt\u4e2d\u5355\u4e2a\u5b57\u6bcd\u7ec4\u6210\u7684\u5b57\u7b26\u4e32\u6570\u7ec4\r\nString[] letter = split(onelongstring,\"\");<\/pre>\n<p>\u4e8e\u662f\u81ea\u7136\u800c\u7136\u7684\uff0c\u653e\u5f03\u505a\u5b57\u7b26\u4e32\u6bd4\u8f83\u7684\u5c1d\u8bd5\u3002\u73b0\u5728\u7684\u552f\u4e00\u9009\u62e9\u5c31\u662f\u6bd4\u8f83char\u3002\u4e8e\u662f\u60f3\u5230\u5728<em>draw()<\/em>\u91cc\u8fb9\u8fd9\u4e48\u5199\uff1a<\/p>\n<pre class=\"brush:processing\">\r\n\/\/ \u904d\u5386\u5b57\u6bcd\u8868\u5b57\u7b26\u4e32\u7684\u6bcf\u4e00\u4e2a\u5b57\u6bcd\r\nletter = alphabet.charAt(counter);\r\ncounter++;\r\n\r\n\/\/ \u521d\u59cb\u5316\u6bcf\u4e2a\u5b57\u6bcd\u51fa\u73b0\u7684\u8ba1\u6570\r\nint total = 0;\r\n\/\/ \u904d\u5386txt\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u6bcd\uff0c\u540c\u65f6\u4e0e\u5b57\u6bcd\u8868\u4e2d\u7684\u6bcf\u4e2a\u5b57\u6bcd\u6bd4\u8f83\r\n\/\/ \u5982\u679c\u76f8\u540c\uff0c\u589e\u52a0\u76f8\u540c\u6b21\u6570total\u7684\u503c\r\n\/\/ \u6211\u4eec\u4ecetxt\u7684\u7b2c\u4e24\u5343\u4e2a\u5b57\u7b26\u5f00\u59cb\u6570\uff0c\u4ee5\u6b64\u52a0\u5feb\u7a0b\u5e8f\u8fd0\u884c\u7684\u901f\u5ea6\r\nfor(int i=2000;i < everything.length();i++) {\r\n  tletter = everything.charAt(i);\r\n    if (letter==tletter) {\r\n      total++;\r\n    }\r\n}\r\n<\/pre>\n<p>\u8fd9\u91cc\u6709\u4e00\u4e2a\u5173\u952e\u7684\u601d\u7ef4\uff0c\u4f60\u662f\u6bcf\u6b21\u7528\u5b57\u6bcd\u8868\u4e2d\u7684\u4e00\u4e2a\u5b57\u6bcd\u904d\u5386\u4e00\u6b21txt\u6587\u6863\uff0c\u5f97\u51fa\u5176\u5728txt\u4e2d\u51fa\u73b0\u7684\u6b21\u6570\u3002\u4ee5\u6b64\u7c7b\u63a8\uff0ca,b,c,d,e,f,g........z\u7684\u8fdb\u884c\u4e0b\u53bb\uff08\u8fd9\u5e76\u4e0d\u662f\u4e00\u4e2a\u5f88\u9ad8\u6548\u7684\u65b9\u5f0f\uff0c\u56e0\u4e3a\u6bcf\u6bd4\u5bf9\u4e00\u4e2a\u5b57\u6bcd\uff0c\u90fd\u9700\u8981\u904d\u5386\u4e00\u6b21txt\u6587\u6863\uff0c\u4f46\u6211\u8ba4\u4e3a\u66f4\u6613\u4e8e\u521d\u5b66\u8005\u5b66\u4e60\u3002\u9ad8\u7ea7\u7684\u65b9\u5f0f\u89c1\u4e0b\u6587\uff09\u3002<br \/>\n\u8fd8\u6709\u8bf7\u6ce8\u610f\uff0c\u5bf9\u6bd4\u4e24\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u201c\u76f8\u7b49\u201d\u53ef\u4ee5\u4f7f\u7528<em>equals()<\/em>\u51fd\u6570\uff0c\u800c\u5bf9\u6bd4\u4e24\u4e2achar\uff0c\u53ea\u80fd\u4f7f\u7528\u201c==\u201d\u3002<\/p>\n<p>\u4e0b\u4e00\u6b65\uff0c\u7528\u5f97\u5230\u7684total\u6765\u663e\u793a\u67f1\u72b6\u56fe\u3002<br \/>\n1\uff09\u5728\u6bcf\u6839\u67f1\u5b50\u4e0a\u65b9\u663e\u793a\u5bf9\u5e94\u5b57\u6bcd\uff1a<\/p>\n<pre class=\"brush:processing\">int x; \/\/ x\u8f74\u4f4d\u7f6e\r\nfill(150-total\/10); \/\/ \u51fa\u73b0\u6b21\u6570\u8d8a\u9ad8\uff0c\u5b57\u6bcd\u989c\u8272\u8d8a\u6df1\r\ntextAlign(CENTER); \/\/ \u5c45\u4e2d\u663e\u793a\u6587\u672c\r\ntext(letter,x+width\/26\/2,height-total\/4-4); \/\/ \u5728\u67f1\u5b50\u4e0a\u65b9\u7684\u7edf\u4e00\u4f4d\u7f6e\u5c45\u4e2d\u663e\u793a\u6587\u672c<\/pre>\n<p>2\uff09\u663e\u793a\u67f1\u72b6\u56fe\uff1a<\/p>\n<pre class=\"brush:processing\">stroke(0); \/\/ \u8bbe\u7f6e\u8fb9\u6846\u989c\u8272\u4e3a\u9ed1\r\nfill(total\/6,total\/5,total\/6); \/\/ \u51fa\u73b0\u6b21\u6570\u8d8a\u591a\u7684\u5b57\u6bcd\uff0c\u5bf9\u5e94\u67f1\u5b50\u7684\u989c\u8272\u8d8a\u6d45\r\nrect(x,height-total\/4,width\/26,total\/4); \/\/ \/\/ \u51fa\u73b0\u6b21\u6570\u8d8a\u591a\u7684\u5b57\u6bcd\uff0c\u5bf9\u5e94\u67f1\u5b50\u7684\u9ad8\u5ea6\u8d8a\u9ad8\r\nx+=width\/26; \/\/ \u4f9dsize()\u7684\u5bbd\u5ea6\u5e73\u5747\u753b26\u6839\u67f1\u5b50<\/pre>\n<p>\u6700\u540e\u4e0d\u8981\u5fd8\u8bb0\uff0c\u5728\u663e\u793a\u5b8cz\u4e4b\u540e\uff0c\u505c\u6b62<em>draw()<\/em>\u7684\u5faa\u73af\uff0c\u5426\u5219\u8fd9\u4e2a\u7a0b\u5e8f\u5c06\u4f1a\u6c38\u8fdc\u7684\u8dd1\u4e0b\u53bb\u3002<\/p>\n<pre class=\"brush:processing\">if(counter==26){\r\n  noLoop();\r\n}<\/pre>\n<p>\u5168\u90e8\u4ee3\u7801\uff08\u6ca1\u6709\u505a\u5206\u9694\u7b26\u5254\u9664\u5de5\u4f5c\uff0c\u4f60\u53ef\u4ee5\u53d6\u6d88\u90a3\u51e0\u884c\u6ce8\u91ca\u6765\u5bf9\u6bd4\u4e24\u8005\u8fd0\u884c\u6548\u7387\u548c\u7ed3\u679c\uff09\uff1a<\/p>\n<pre class=\"brush:processing\">PFont f;\r\nint x;\r\nint counter = 0;\r\nchar tletter;\r\nchar letter;\r\nString alphabet;\r\nString everything;\r\n\/\/String onelongstring;\r\n\/\/String delimiters = \" ,.?!;:[]+\/()\\\"-#=_\";\r\n\r\nvoid setup() {\r\n  size(520,320);\r\n  background(255);\r\n  f = createFont(\"Arial\", 16);\r\n  textFont(f);\r\n\r\n  alphabet = \"abcdefghijklmnopqrstuvwxyz\";\r\n  String url = \"http:\/\/processing.org\/download\/revisions.txt\";\r\n  String[] rawtext = loadStrings(url);\r\n  everything = join(rawtext, \"\" );\r\n  \/\/String[] revisions = splitTokens(everything,delimiters);\r\n  \/\/onelongstring = join(revisions,\"\");\r\n}\r\n\r\nvoid draw() {\r\n  letter = alphabet.charAt(counter);\r\n  counter++;\r\n\r\n  int total = 0;\r\n  for (int i=2000; i < everything.length(); i++) {\r\n    tletter = everything.charAt(i);\r\n    if (letter==tletter) {\r\n      total++;\r\n    }\r\n  }\r\n  print(total+\" \");\r\n  \r\n  fill(150-total\/10);\r\n  textAlign(CENTER);\r\n  text(letter,x+width\/26\/2,height-total\/4-4);\r\n  stroke(0);\r\n  fill(total\/6,total\/5,total\/6);\r\n  rect(x,height-total\/4,width\/26,total\/4);\r\n  x+=width\/26;\r\n  \r\n  if(counter==26){\r\n    noLoop();\r\n  }\r\n}<\/pre>\n<p>\u63a7\u5236\u53f0\u8fd4\u56detotal\u7684\u503c\uff1a<\/p>\n<pre>543 282 401 475 1199 163 565 491 836 8 69 317 193 681 814 415 6 710 823 798 389 149 263 84 94 4<\/pre>\n<p>\u6c34\u5e73\u6709\u9650\uff0c\u4e0d\u5bf9\u3001\u4e0d\u8db3\u3001\u4ee3\u7801\u5197\u4f59\u4e4b\u5904\u6b22\u8fce\u7559\u8a00\u6216\u6765\u4fe1\u6307\u6559\u3002<\/p>\n<p><strong>\u4e0d\u8d70\u5bfb\u5e38\u8def<\/strong><br \/>\n\u4e0b\u8fb9\u662f\u505a\u76f8\u540c\u7684\u4e8b\u66f4\u9ad8\u7ea7\u7684\u4ee3\u7801\uff0c\u51fa\u81ea\u8c46\u74e3p5\u5c0f\u7ec4<a href=\"http:\/\/www.douban.com\/people\/atlantica_tuna\" target=\"_blank\">\u8001\u9676<\/a>\u3002\u8ba9\u4f5c\u4e3ap5\u521d\u5b66\u8005\u7684\u6211\u5927\u6709\u5929\u5916\u98de\u4ed9\u4e4b\u611f\uff0c\u653e\u8fd9\u91cc\u4f9b\u5927\u5bb6\u53c2\u8003\u5b66\u4e60\u501f\u9274\u517b\u773c\uff0c\u4e0e\u6211\u505a\u7684\u6548\u679c\u4e0d\u540c\uff0c\u4ed6\u4e00\u6b21\u6027\u663e\u793a\u5168\u90e8\u76f4\u65b9\uff1a<\/p>\n<pre class=\"brush:processing\">PFont f;\r\n\r\nString letters;\r\nString onelongstring;\r\nString delimiters = \" ,.?!;:[]+\/()\\\"-#=_\";\r\n\r\nint[] frequency = new int[26];\r\n\r\nvoid setup() {\r\n  size(520,350);\r\n  background(255);\r\n  f = createFont(\"Arial\", 16);\r\n  textFont(f);\r\n  initialize();\r\n  stats();\r\n  histoAll();\r\n}\r\n\r\nvoid draw() {\r\n}\r\n\r\nvoid stats(){ \/\/ \u8ba1\u6570\u5b57\u6bcd\u5728txt\u4e2d\u51fa\u73b0\u7684\u6b21\u6570\r\n  for(int iter = 0; iter < onelongstring.length(); iter++)\r\n    for(int iter1 = 0; iter1 < letters.length(); iter1++)\r\n      if (onelongstring.charAt(iter) == letters.charAt(iter1))\r\n        frequency[iter1]++;\r\n\r\n  for(int iter = 0; iter < frequency.length; iter++)\r\n    print(frequency[iter]+\" \");\r\n}\r\n\r\nvoid initialize(){ \/\/ \u83b7\u53d6\u6587\u672c\u5e76\u52a0\u5165\u4e00\u4e2a\u5b57\u7b26\u4e32\r\n  letters = \"abcdefghijklmnopqrstuvwxyz\";\r\n  String url = \"http:\/\/processing.org\/download\/revisions.txt\";\r\n  String[] rawtext = loadStrings(url);\r\n  String everything = join(rawtext, \"\" );\r\n  String[] revisions = splitTokens(everything,delimiters);\r\n  onelongstring = join(revisions,\"\");\r\n}\r\n\r\nvoid histo(int ithLetter){ \/\/ \u4e3a\u4e00\u4e2a\u5b57\u6bcd\u753b\u67f1\u72b6\u56fe\r\n  fill(150-frequency[ithLetter]\/10);\r\n  textAlign(CENTER);\r\n  text(letters.charAt(ithLetter),ithLetter*20+10,height-frequency[ithLetter]\/4-4);\r\n  stroke(0);\r\n  fill(frequency[ithLetter]\/6,frequency[ithLetter]\/5,frequency[ithLetter]\/6);\r\n  rect(ithLetter*20,height-frequency[ithLetter]\/4,20,frequency[ithLetter]\/4);\r\n}\r\n\r\nvoid histoAll(){ \/\/ \u4e3a\u6240\u6709\u5b57\u6bcd\u753b\u67f1\u72b6\u56fe\r\n  for(int iter = 0; iter < frequency.length; iter++)\r\n    histo(iter);\r\n}<\/pre>\n<p><strong>Daniel\u7684\u505a\u6cd5<\/strong><br \/>\n\u56e0\u4e3a\u4e66\u672c\u7f51\u7ad9\u4e0a\u6ca1\u6709\u8fd9\u4e00\u9898\u7684\u7b54\u6848\uff0c\u56e0\u6b64\u6211\u7ed9Daniel\u5199\u4e86\u90ae\u4ef6\u8be2\u95ee\uff0c\u4ee5\u4e0b\u662f\u4ed6\u7ed9\u6211\u7684\u7b54\u6848\uff0c\u5bf9\u6bd4\u6211\u7684\u505a\u6cd5\uff0c\u6709\u51e0\u70b9\u4e0d\u540c\uff1a<\/p>\n<ul>\n<li>\u4ed6\u5c06\u6574\u5408\u540e\u7684\u957f\u6587\u672c\u5b57\u7b26\u4e32\u7528<em>toLowerCase()<\/em>\u5168\u90e8\u964d\u4e3a\u4e86\u5c0f\u5199\uff0c\u4f7f\u5f97\u7edf\u8ba1\u7684\u7ed3\u679c\u66f4\u51c6\u786e\u3002<\/li>\n<li>\u4ed6\u7528a~z\u7684ASCII\u7801\uff08\u6570\u5b57\uff09\u66ff\u4ee3\u4e86\u6211\u7e41\u7410\u7684\u4ecea\u8f93\u5165\u5230z\u7684\u8fc7\u7a0b\uff0c\u5e76\u5de7\u5999\u5730\u5c06\u5b83\u4eec\u6620\u5c04\u52300-25\u7684\u8303\u56f4\u5185\uff08\u6570\u7ec4\u7d22\u5f15\uff09\uff08\u5176\u5b9e\u8fd9\u4e2a\u6211\u4e5f\u8bd5\u8fc7\uff0c\u4f46\u540e\u6765\u7531\u4e8e\u63a7\u5236\u529b\u5dee\u3001\u5bb9\u6613\u6df7\u6dc6\uff0c\u8fd8\u662f\u653e\u5f03\u4e86..\uff09\u3002<\/li>\n<li>\u4ed6\u5f15\u5165\u4e86\u6700\u5927\u8ba1\u6570\uff08maxCount\uff09\u7684\u6982\u5ff5\uff0c\u8bbe\u7f6e\u5982\u679c\u5b57\u6bcd\u8868\u6570\u7ec4\u7684\u7b2ci\u4e2a\u5b57\u6bcd\u5927\u4e8emaxCount\uff0c\u5219\u5c06\u8fd9\u4e2a\u503c\u8d4b\u7ed9\u6570\u7ec4\u4e2d\u7684\u7b2ci\u4e2a\u5b57\u6bcd\u3002\u8fd9\u4e2a\u633a\u806a\u660e\u7684\u3002<\/li>\n<\/ul>\n<pre class=\"brush:processing\">\r\nPFont f; \/\/ A variable to hold onto a font\r\n\r\nString all;\r\nint[] letterCounts = new int[26];\r\nint maxCount = 0;\r\n\r\nvoid setup() {\r\n  size(390,200);\r\n  \/\/ Load the font\r\n  f = createFont(\"Georgia\",16,true);\r\n  String url = \"http:\/\/processing.org\/download\/revisions.txt\";\r\n  String[] rawtext = loadStrings(url);\r\n  all = join(rawtext,\" \");\r\n  \/\/ \u5c06\u5168\u90e8\u5b57\u7b26\u964d\u4e3a\u5c0f\u5199 \r\n  all = all.toLowerCase();\r\n\r\n\r\n  for (int i = 0; i < all.length(); i++) {\r\n    \/\/ \u904d\u5386\u6bcf\u4e2a\u5b57\u7b26\r\n    char c = all.charAt(i);\r\n    \/\/ \u5982\u679c\u662fa-z\u7684\u8bdd\r\n    if (c > 96 && c < 123) {\r\n      \/\/ \u51cf\u53bb97 ('a'\u7684ASCII\u7801)\r\n      \/\/ \u8fd9\u4e00\u6b65\u5c06\u5b57\u6bcd\u6620\u5c04\u52300-25\u7684\u8303\u56f4\u5185\uff08\u5173\u952e\u4e00\u6b65\uff09\r\n      int index = c - 97;\r\n      \/\/ \u901a\u8fc7\u589e\u52a0\u7d22\u5f15\u589e\u52a0\u8ba1\u6570\r\n      letterCounts[index]++;\r\n    } \r\n  }\r\n\r\n  \/\/ \u627e\u5230\u5b57\u6bcd\u8ba1\u6570\u7684\u6700\u5927\u503c\r\n  \/\/ \u6211\u4eec\u7528\u5b83\u6765\u7ed9\u67f1\u72b6\u56fe\u8d4b\u503c\r\n  for (int i = 0; i < letterCounts.length; i++) {\r\n    if (letterCounts[i] > maxCount) {\r\n      maxCount = letterCounts[i];\r\n    }\r\n  }\r\n}\r\n\r\nvoid draw() {\r\n  background(255);\r\n  textFont(f);\r\n  fill(0);\r\n  \r\n  \/\/ \u753b\u4e00\u6839\u67f1\u5b50\r\n  for (int x = 0; x < letterCounts.length; x++) {\r\n    \/\/ \u9ad8\u5ea6\u57fa\u4e8ecount\r\n    float h = 180*(letterCounts[x] \/ (float)maxCount);\r\n    stroke(0);\r\n    strokeWeight(1);\r\n    fill(175);\r\n    rect(x*15,height-h,15,h); \r\n    fill(0);\r\n    textAlign(CENTER);\r\n    text((char)(x+97),x*15+15\/2.0,height-h-5);\r\n  }\r\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662f\u300aLearning Processing\u300b\u7b2c\u5341\u516b\u7ae0\u201c\u6570\u636e\u8f93\u5165\u201d\u7684\u7ec3\u4e6018-10\uff1a\u904d\u5386\u4e00\u4e2a\u6765\u81eaURL\u7684txt\u6587\u672c\uff08\u672c\u7ec3\u4e60\u5185\u6211\u4f7f\u7528\u7684\u662fhttp:\/\/processing.org\/download\/revisions.txt\uff09\u4e2d\u7684\u6587\u5b57\uff0c\u7edf\u8ba1\u5b83\u4eec\u5728\u5b57\u6bcd\u8868a~z\u4e2d\u51fa\u73b0\u7684\u9891\u7387\uff0c\u5e76\u663e\u793a\u4e3a\u67f1\u72b6\u6bd4\u4f8b\u56fe\uff08\u5f53\u7136\u4f60\u4e5f\u53ef\u4ee5\u5c06\u5176\u8868\u793a\u4e3a\u5176\u4ed6\u53ef\u89c6\u5316\u6548\u679c\uff09\u3002\u5982\u56fe\u3002 \u867d\u7136\u8fd8\u6ca1\u8bfb\u5230Ben Fry\u5199\u7684\uff0c\u4f46\u662f\u8fd9\u4e0d\u5c31\u662f\u4e00\u4e2a\u6d3b\u751f\u751f\u7684\u6709\u8da3\u7684\u7ec3\u4e60\u5417\uff1f<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64],"tags":[62],"class_list":["post-943","post","type-post","status-publish","format-standard","hentry","category-processing-lab","tag-processing-diy"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/943","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=943"}],"version-history":[{"count":10,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/943\/revisions"}],"predecessor-version":[{"id":956,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/943\/revisions\/956"}],"wp:attachment":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}