HTML
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>伪验证码</title>
<link rel="stylesheet" href="../css/Job08_08_03.css" type="text/css">
</head>
<body>
<div>
<!--文本框及按钮-->
<label>
<input type="text" value="" placeholder="输入验证码" id="tex"><br>
<input type="button" value="提交" onclick="subm()">
<small>区分大小写，点击验证码刷新</small>
</label>
<!--验证码-->
<div id="verDiv" onclick="refresh()"></div>
</div>
<script type="text/javascript" src="../js/Job08_08_03.js"></script>
</body>
</html>
CSS
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/*文本按钮样式区域*/
label{
float: left;
}
/*验证码样式区域*/
div>div{
width: 100px;
height: 23px;
float: left;
margin-left: 10px;
padding: 2px;
color: red;
letter-spacing: 3px;
}
JavaScript
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//获取验证码标签
var verDiv = document.getElementById("verDiv");
//页面载入验证码
verDiv.innerHTML=verify();
//验证码提交入口
function subm() {
//获取文本框内容
var tex = document.getElementById("tex");
// var tex1 =tex.value;
if(tex.value==verDiv.innerHTML){
alert("恭喜，验证成功。");
}else {
alert("请输入正确的验证码！");
//错误重新生成验证码
var newVer =verify();
verDiv.innerHTML = newVer;
}
}
// 随机获取6位验证码方法
function verify() {
//声明包含0-9,A-z的数组
var arr=['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'];
//存放验证码
var ver="";
//取数组六位随机元素
for(i=0;i<6;i++){
var num=parseInt(Math.random()*arr.length);
ver += arr[num];
}
return ver;
}
//验证码刷新入口
function refresh(){
var newVer =verify();
verDiv.innerHTML = newVer;
管理
