JavaScript实现随机五位数验证码

本文实例为大家分享了js实现随机五位数验证码的具体代码,供大家参考,具体内容如下

功能展示:

点击按钮,随机生成数字+大小写字母验证码


所有代码:

<!DOCTYPE html>

<html>

<head>

<meta charset="UTF-8">

<title>随机生成验证码</title>

</head>

<style>

/*验证码*/

.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>

<!--随机验证码-->

<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,//验证码长度

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();//初始化验证码

_this.find("#data_code").bind('click', function() {

options.code_Init();

});

};

$('#check-code').code_Obj({

codeLength: 5

});

</script>

</body>

</html>

以上是 JavaScript实现随机五位数验证码 的全部内容, 来源链接: utcz.com/z/332527.html

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