var btn1 = document.querySelector('.btn1');
var tel = document.querySelector('.tel');
var error = document.querySelector('.error');
var time = 60;
btn1.onclick = function(){
var name = tel.value;
if (name == "") {
error.innerHTML='手机号不能为空!';
return;
}
else {
if (!(/^1[3|4|5|7|8]\d{9}$/.test(name))) {
error.innerHTML='手机号格式有误.';
return;
}
}
var timer = setInterval(function(){
time--;
btn1.innerHTML = time + "秒";
btn1.disabled = true;
if (time==0) {
time = 60;
clearInterval(timer);
btn1.innerHTML = "获取验证码";
btn1.disabled = false;
}
},1000);
}
