js实现按钮重新发送验证码倒计时效果

页面js代码

    //倒计时    var wait = 60;    function time(btnObj) {        if (wait == 0) {            btnObj.removeAttribute("disabled");            btnObj.textContent = "再次获取验证码";            wait = 60;        } else {            btnObj.setAttribute("disabled", true);            btnObj.textContent = "重新发送验证码(" + wait + "s)";            wait--;            setTimeout(function() {                    time(btnObj)                },1000)        }    }