javaScript 验证码 倒计时60秒
- <input type="button" id="btn" value="免费获取验证码" />
- <script type="text/javascript">
- var wait=60;
- function time(o) {
- if (wait == 0) {
- o.removeAttribute("disabled");
- o.value="免费获取验证码";
- wait = 60;
- } else {
- o.setAttribute("disabled", true);
- o.value="重新发送(" + wait + ")";
- wait--;
- setTimeout(function() {
- time(o)
- },
- 1000)
- }
- }
- document.getElementById("btn").onclick=function(){time(this);}
- </script>
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