pc端向手机发送验证码

var timer;
var time=180;

var timer_is_on=0; 

//点击发送验证码，开始计数
function timeCountDown(){
if(time==0){
window.clearTimeout(timer);
$('#phoneBtn').text("重新发送验证码");
$('#phoneBtn').attr("disabled",false);  
return true;
}else{
$('#phoneBtn').attr("disabled","disabled");
$('#phoneBtn').html("<font style='color:red'>"+time+"</font>S后失效");
time--;
}
timer = window.setTimeout(timeCountDown,1000);
}

//停止计数
function stopCount(){ 
console.info(timer);
time=180;
window.clearTimeout(timer);
    timer_is_on=0; 
}