js之验证码倒计时功能
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<!DOCTYPE html> <html > <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>发送验证码倒计时功能</title> <style> @charset "utf-8"; *{ margin:0; padding:0; list-style:none} body{ background:#EBECED; font-family:\'微软雅黑\'} .form{width: 450px;height: auto; margin:100px auto; overflow:hidden;font-size: 16px;color: #1b1b1b;text-align: left; padding:50px; border:1px solid #ccc; border-radius:10px;} .form div{padding:5px 0;overflow: hidden;} .form label{width: 90px;display: block;float: left;} .form .infos{width:200px;height: 26px;line-height: 26px;border:1px solid #BFBFBF;padding:2px;border-radius:4px;float: left;} .form .div-phone a.send1{height: 26px;text-decoration:none;line-height: 26px;padding:2px;width: 80px;background: #AA8926;font-family: \'宋体\';color: #fff;font-size: 12px;text-align: center;display: block;float: left;border-radius:2px;margin-left:2px;-webkit-transition:all 0.2s linear;-moz-transition:all 0.2s linear;-ms-transition:all 0.2s linear;-o-transition:all 0.2s linear;transition:all 0.2s linear;} .form .div-phone a.send1:hover{text-decoration: none;background: #866c1b;-webkit-transition:all 0.2s linear;-moz-transition:all 0.2s linear;-ms-transition:all 0.2s linear;-o-transition:all 0.2s linear;transition:all 0.2s linear;} .form .div-phone a.send0{height: 26px;text-decoration:none;line-height: 26px;padding:2px;width: 80px;background: #A1A1A1;font-family: \'宋体\';color: #fff;font-size: 12px;text-align: center;display: block;float: left;border-radius:2px;margin-left:2px;} .form .div-phone a.send0:hover{background: #A1A1A1;font-family: \'宋体\';color: #fff;font-size: 12px;text-decoration: none;} .form span.error{height: 26px;line-height: 26px;padding:2px;width: 100px;color: red;padding-left:20px;display: block;float: left;margin-left:10px;font-size: 12px;font-family: \'宋体\';background: url(../images/error.png) no-repeat left center;} .form #phone{width: 116px;} .form .div-conform{padding-right:153px;} .form .div-conform a.conform{width: 136px;height: 34px;display: block;text-align: left;overflow: hidden;background: url(../images/btn.jpg) no-repeat;float: right;text-indent: -1000px;} </style> </head> <body> <!--代码部分begin--> <div class="form"> <div class="div-name"> <label for="name">用户名</label><input type="text" id="name" class="infos" placeholder="请输入用户名" /> </div> <div class="div-phone"> <label for="phone">手机</label><input type="text" id="phone" class="infos" placeholder="请输入手机" /> <a href="javascript:;" rel="external nofollow" rel="external nofollow" class="send1" onclick="sends.send();">发送验证码</a> </div> <div class="div-ranks"> <label for="ranks">验证码</label><input type="text" id="ranks" class="infos" placeholder="请输入验证码" /> </div> <div class="div-conform"> <a href="javascript:;" rel="external nofollow" rel="external nofollow" class="conform" onclick="sends.conform();">提交</a> </div> </div> <script src="http://www.lanrenzhijia.com/ajaxjs/jquery.min.js"></script> <script> var sends = { checked:1, send:function(){ var numbers = /^1\\d{10}$/; var val = $(\'#phone\').val().replace(/\\s+/g,""); //获取输入手机号码 if($(\'.div-phone\').find(\'span\').length == 0 && $(\'.div-phone a\').attr(\'class\') == \'send1\'){ if(!numbers.test(val) || val.length ==0){ $(\'.div-phone\').append(\'<span class="error">手机格式错误</span>\'); return false; } } if(numbers.test(val)){ var time = 30; $(\'.div-phone span\').remove(); function timeCountDown(){ if(time==0){ clearInterval(timer); $(\'.div-phone a\').addClass(\'send1\').removeClass(\'send0\').html("发送验证码"); sends.checked = 1; return true; } $(\'.div-phone a\').html(time+"S后再次发送"); time--; return false; sends.checked = 0; } $(\'.div-phone a\').addClass(\'send0\').removeClass(\'send1\'); timeCountDown(); var timer = setInterval(timeCountDown,1000); } } } </script> </body> </html>
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