js防刷新倒计时--发送验证码倒计时

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/Ming_key/article/details/83268985

<input type="button" class="inputbutton" id="getcode" value="获取验证码" onclick="send()">

var code = $("#getcode");
code.attr("disabled","disabled");
setTimeout(function(){
    code.css("opacity","0.8");
},1000)
var time = 60;
var set=setInterval(function(){
    code.val("("+--time+")秒后重新获取");
}, 1000);
setTimeout(function(){
    code.attr("disabled",false).val("重新获取验证码");
    clearInterval(set);
}, 60000);