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js 生成四位随机字符串

  1. <!DOCTYPE html>
  2. <html>
  3.     
  4.     <head lang="en">
  5.         <meta charset="UTF-8">
  6.         <title>
  7.         </title>
  8.         <script>
  9.             var commonChineseUnicode = ['0x7684', '0x4e00', '0x4e86', '0x662f', '0x6211', '0x4e0d', '0x5728', '0x4eba', '0x4eec', '0x6709', '0x6765', '0x4ed6', '0x8fd9', '0x4e0a', '0x7740', '0x4e2a', '0x5730', '0x5230', '0x5927', '0x91cc', '0x8bf4', '0x5c31', '0x53bb', '0x5b50', '0x5f97', '0x4e5f', '0x548c', '0x90a3', '0x8981', '0x4e0b', '0x770b', '0x5929', '0x65f6', '0x8fc7', '0x51fa', '0x5c0f', '0x4e48', '0x8d77', '0x4f60', '0x90fd', '0x628a', '0x597d', '0x8fd8', '0x591a', '0x6ca1', '0x4e3a', '0x53c8', '0x53ef', '0x5bb6', '0x5b66', '0x53ea', '0x4ee5', '0x4e3b', '0x4f1a', '0x6837', '0x5e74', '0x60f3', '0x751f', '0x540c', '0x8001', '0x4e2d', '0x5341', '0x4ece', '0x81ea', '0x9762', '0x524d', '0x5934', '0x9053', '0x5b83', '0x540e', '0x7136', '0x8d70', '0x5f88', '0x50cf', '0x89c1', '0x4e24', '0x7528', '0x5979', '0x56fd', '0x52a8', '0x8fdb', '0x6210', '0x56de', '0x4ec0', '0x8fb9', '0x4f5c', '0x5bf9', '0x5f00', '0x800c', '0x5df1', '0x4e9b', '0x73b0', '0x5c71', '0x6c11', '0x5019', '0x7ecf', '0x53d1', '0x5de5', '0x5411', '0x4e8b', '0x547d', '0x7ed9', '0x957f', '0x6c34', '0x51e0', '0x4e49', '0x4e09', '0x58f0', '0x4e8e', '0x9ad8', '0x624b', '0x77e5', '0x7406', '0x773c', '0x5fd7', '0x70b9', '0x5fc3', '0x6218', '0x4e8c', '0x95ee', '0x4f46', '0x8eab', '0x65b9', '0x5b9e', '0x5403', '0x505a', '0x53eb', '0x5f53', '0x4f4f', '0x542c', '0x9769', '0x6253', '0x5462', '0x771f', '0x5168', '0x624d', '0x56db', '0x5df2', '0x6240', '0x654c', '0x4e4b', '0x6700', '0x5149', '0x4ea7', '0x60c5', '0x8def', '0x5206', '0x603b', '0x6761', '0x767d', '0x8bdd', '0x4e1c', '0x5e2d', '0x6b21', '0x4eb2', '0x5982', '0x88ab', '0x82b1', '0x53e3', '0x653e', '0x513f', '0x5e38', '0x6c14', '0x4e94', '0x7b2c', '0x4f7f', '0x5199', '0x519b', '0x5427', '0x6587', '0x8fd0', '0x518d', '0x679c', '0x600e', '0x5b9a', '0x8bb8', '0x5feb', '0x660e', '0x884c', '0x56e0', '0x522b', '0x98de', '0x5916', '0x6811', '0x7269', '0x6d3b', '0x90e8', '0x95e8', '0x65e0', '0x5f80', '0x8239', '0x671b', '0x65b0', '0x5e26', '0x961f', '0x5148', '0x529b', '0x5b8c', '0x5374', '0x7ad9', '0x4ee3', '0x5458', '0x673a', '0x66f4', '0x4e5d', '0x60a8', '0x6bcf', '0x98ce', '0x7ea7', '0x8ddf', '0x7b11', '0x554a', '0x5b69', '0x4e07', '0x5c11', '0x76f4', '0x610f', '0x591c', '0x6bd4', '0x9636', '0x8fde', '0x8f66', '0x91cd', '0x4fbf', '0x6597', '0x9a6c', '0x54ea', '0x5316', '0x592a', '0x6307', '0x53d8', '0x793e', '0x4f3c', '0x58eb', '0x8005', '0x5e72', '0x77f3', '0x6ee1', '0x65e5', '0x51b3', '0x767e', '0x539f', '0x62ff', '0x7fa4', '0x7a76', '0x5404', '0x516d', '0x672c', '0x601d', '0x89e3', '0x7acb', '0x6cb3', '0x6751', '0x516b', '0x96be', '0x65e9', '0x8bba', '0x5417', '0x6839', '0x5171', '0x8ba9', '0x76f8', '0x7814', '0x4eca', '0x5176', '0x4e66', '0x5750', '0x63a5', '0x5e94', '0x5173', '0x4fe1', '0x89c9', '0x6b65', '0x53cd', '0x5904', '0x8bb0', '0x5c06', '0x5343', '0x627e', '0x4e89', '0x9886', '0x6216', '0x5e08', '0x7ed3', '0x5757', '0x8dd1', '0x8c01', '0x8349', '0x8d8a', '0x5b57', '0x52a0', '0x811a', '0x7d27', '0x7231', '0x7b49', '0x4e60', '0x9635', '0x6015', '0x6708', '0x9752', '0x534a', '0x706b', '0x6cd5', '0x9898', '0x5efa', '0x8d76', '0x4f4d', '0x5531', '0x6d77', '0x4e03', '0x5973', '0x4efb', '0x4ef6', '0x611f', '0x51c6', '0x5f20', '0x56e2', '0x5c4b', '0x79bb', '0x8272', '0x8138', '0x7247', '0x79d1', '0x5012', '0x775b', '0x5229', '0x4e16', '0x521a', '0x4e14', '0x7531', '0x9001', '0x5207', '0x661f', '0x5bfc', '0x665a', '0x8868', '0x591f', '0x6574', '0x8ba4', '0x54cd', '0x96ea', '0x6d41', '0x672a', '0x573a', '0x8be5', '0x5e76', '0x5e95', '0x6df1', '0x523b', '0x5e73', '0x4f1f', '0x5fd9', '0x63d0', '0x786e', '0x8fd1', '0x4eae', '0x8f7b', '0x8bb2', '0x519c', '0x53e4', '0x9ed1', '0x544a', '0x754c', '0x62c9', '0x540d', '0x5440', '0x571f', '0x6e05', '0x9633', '0x7167', '0x529e', '0x53f2', '0x6539', '0x5386', '0x8f6c', '0x753b', '0x9020', '0x5634', '0x6b64', '0x6cbb', '0x5317', '0x5fc5', '0x670d', '0x96e8', '0x7a7f', '0x5185', '0x8bc6', '0x9a8c', '0x4f20', '0x4e1a', '0x83dc', '0x722c', '0x7761', '0x5174', '0x5f62', '0x91cf', '0x54b1', '0x89c2', '0x82e6', '0x4f53', '0x4f17', '0x901a', '0x51b2', '0x5408', '0x7834', '0x53cb', '0x5ea6', '0x672f', '0x996d', '0x516c', '0x65c1', '0x623f', '0x6781', '0x5357', '0x67aa', '0x8bfb', '0x6c99', '0x5c81', '0x7ebf', '0x91ce', '0x575a', '0x7a7a', '0x6536', '0x7b97', '0x81f3', '0x653f', '0x57ce', '0x52b3', '0x843d', '0x94b1', '0x7279', '0x56f4', '0x5f1f', '0x80dc', '0x6559', '0x70ed', '0x5c55', '0x5305', '0x6b4c', '0x7c7b', '0x6e10', '0x5f3a', '0x6570', '0x4e61', '0x547c', '0x6027', '0x97f3', '0x7b54', '0x54e5', '0x9645', '0x65e7', '0x795e', '0x5ea7', '0x7ae0', '0x5e2e', '0x5566', '0x53d7', '0x7cfb', '0x4ee4', '0x8df3', '0x975e', '0x4f55', '0x725b', '0x53d6', '0x5165', '0x5cb8', '0x6562', '0x6389', '0x5ffd', '0x79cd', '0x88c5', '0x9876', '0x6025', '0x6797', '0x505c', '0x606f', '0x53e5', '0x533a', '0x8863', '0x822c', '0x62a5', '0x53f6', '0x538b', '0x6162', '0x53d4', '0x80cc'];
  10.             var getRandom = function(offset, last) {
  11.                 return Math.floor(Math.random() * (last - offset + 1) + offset);
  12.             };
  13.             var getChar = function(offset, last) {
  14.                 return String.fromCharCode(getRandom(offset, last));
  15.             };
  16.             var randomStr = "";
  17.             var getStr = function(randomType) { //0 number 1 upperCase 2 lowerCase 3 chinese character;
  18.                 if (randomType == 0) {
  19.                     return getChar(48, 57);
  20.                 } else if (randomType == 1) {
  21.                     return getChar(65, 90);
  22.                 } else if (randomType == 2) {
  23.                     return getChar(97, 122);
  24.                 } else {
  25.                     return String.fromCharCode(commonChineseUnicode[getRandom(0, 486)]);
  26.                 }
  27.             };
  28.             for (var j = 0; j < 10; j++) {
  29.                 for (var i = 0; i < 4; i++) {
  30.                     randomStr += getStr(getRandom(0, 3));
  31.                 }
  32.                 randomStr += "<br/>";
  33.             }
  34.             document.write(randomStr);
  35.         </script>
  36.     </head>
  37.     
  38.     <body>
  39.     </body>
  40.  
  41. </html>

结果如下:

汉字是插入了常用的汉字 当然你也可以手打 不用 unicode 码

来源: http://www.bubuko.com/infodetail-1950371.html


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