jQuery随机生成验证码插件代码

js代码

<script type=\"text/javascript\">
	/**
	 * 验证码
	 * @param {Object} o 验证码长度
	 */
	$.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();
		});
	};
</script>
<script type=\"text/javascript\">
	/**
	 * 验证码
	 * codeLength:验证码长度
	 */
	$(\'#check-code\').code_Obj({
		codeLength: 5
	});
</script>