JavaScript隨機五位數驗證碼

Winter_Wang發表於2019-01-22
JavaScript隨機

功能展示：

1.點選按鈕，隨機生成數字+大小寫字母驗證碼

JavaScript隨機五位數驗證碼

JavaScript隨機五位數驗證碼

所有程式碼：

<!DOCTYPE html>
<html>

<head>
<meta charset="UTF-8">
<title>隨機生成驗證碼</title>
</head>
<style>
/*驗證碼*/

.upload-awrp {
   overflow: hidden;
   margin: 120px 0;
}

.code {
   font-family: Arial;
   font-style: italic;
   font-size: 30px;
   border: 0;
   padding: 2px 3px;
   letter-spacing: 3px;
   font-weight: bolder;
   float: left;
   cursor: pointer;
   width: 150px;
   height: 60px;
   line-height: 60px;
   text-align: center;
   vertical-align: middle;
   border: 1px solid #6D6D72;
}
</style>

<body>

<!--隨機驗證碼-->
<div id="check-code" style="overflow: hidden;">
   <div class="code" id="data_code"></div>
</div>

<script src="js/jquery.min.js"></script>
<script type="text/javascript">

   $.fn.code_Obj = function(o) {
      var _this = $(this);
      var options = {
         code_l: o.codeLength,//驗證碼長度
         codeChars: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
            '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',
            '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'
         ],
         codeColors: ['#f44336', '#009688', '#cddc39', '#03a9f4', '#9c27b0', '#5e4444', '#9ebf9f', '#ffc8c4', '#2b4754', '#b4ced9', '#835f53', '#aa677e'],
         code_Init: function() {
            var code = "";
            var codeColor = "";
            var checkCode = _this.find("#data_code");
            for(var i = 0; i < this.code_l; i++) {
               var charNum = Math.floor(Math.random() * 52);
               code += this.codeChars[charNum];
            }
            for(var i = 0; i < this.codeColors.length; i++) {
               var charNum = Math.floor(Math.random() * 12);
               codeColor = this.codeColors[charNum];
            }
            console.log(code);
            if(checkCode) {
               checkCode.css('color', codeColor);
               checkCode.className = "code";
               checkCode.text(code);
               checkCode.attr('data-value', code);
            }
         }
      };

      options.code_Init();//初始化驗證碼
      _this.find("#data_code").bind('click', function() {
         options.code_Init();
      });
   };

    $('#check-code').code_Obj({
        codeLength: 5
    });
</script>
</body>
</html>複製程式碼


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