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<meta charset="UTF-8" /> <script type="text/javascript" src="js/jquery.js"></script> <script type="text/javascript">[/html][js] $(function () { //获取短信验证码 var validCode=true; $(".msgs").click (function () { var time=30; var code=$(this); if (validCode) { validCode=false; code.addClass("msgs1"); var t=setInterval(function () { time--; code.html(time+"秒"); if (time==0) { clearInterval(t); code.html("重新获取"); validCode=true; code.removeClass("msgs1"); } },1000) } }) })[/js]
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    </script>

    <style type="text/css">
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      form{margin:200px auto;width:500px;}
      label{font-size:14px;color:#555;line-height:40px;margin-right:10px;}
      input{width:212px;height:38px;border-style:none;padding:0 4px;border:1px solid #C8C8C8;margin-right:10px;outline:none;}
      .msgs{display:inline-block;width:104px;color:#fff;font-size:12px;border:1px solid #0697DA;text-align:center;height:30px;line-height:30px;background:#0697DA;cursor:pointer;}
      form .msgs1{background:#E6E6E6;color:#818080;border:1px solid #CCCCCC;}
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        </style>



        <form>
        <label style="float:left;">验&nbsp;&nbsp;证&nbsp;码</label>
        <input type="text" class="c_code_msg" style="margin-right: 10px;">
        <span class="msgs">获取短信验证码</span>
        </form>
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