js獲取短信驗證碼按鈕倒計時代碼

 (function(){
 // 快速咨詢
 $('#getCode').click(function() {
 var mobile = $('#mobile').val();//手機號碼的值
 var _this = $(this);
 var mobileReg = /^1[3|4|5|7|8]\d{9}$/; //手機號正則
 var phoneflag = mobileReg.test(mobile);

 if (!phoneflag) {
 alert('手機號碼格式不正確！');
 } else {

 //User/getCode.html這個是后臺接口

 $.post("/User/getCode.html", {
 mobile: mobile
 }, function(data) {
 _this.attr("disabled", "disabled");
 _this.css({background:"#eee"});//設置不可點顏色
 var val = parseInt(_this.val());
 var time = 60;
 _this.val(time + " S");
 time--;

 var timer = setInterval(function() {
 val = time + " S";
 _this.val(val);
 if (time > 0) {
 time--;
 } else {
 //原始顏色
 _this.val("獲取驗證碼").removeAttr("disabled").css({background:"#66CCFF"});;
 clearInterval(timer);
 }
 }, 1000);
 });
 }

 });
 })();