弹窗三法显示时，开始倒计时5秒$('.three-method').show()varcountdown=5;setTimeout(function(){window.clearInterval(timer);window.open("http://192.168.10.125:10096/guan/download","_parent");},5000);timer=setInterval(()=>{vari18nText=$("#regCountdown").text();//获取“您注册成功，2秒后跳转到APP下载页面”i18nText=i18nText.replace(countdown,--countdown);//replace()在字符串中用字符“countdown=5”替换递减的倒计时值$("#regCountdown").text(i18nText);},1000);//执行一次每一秒
