验证码倒计时

// 验证码倒计时

settime: function (that, countdown) {

if (countdown == 0) {

that.setData({

is_show: true,

})

countdown = 60;

return;

} else {

countdown--;

that.setData({

is_show: false,

numbers: countdown

})

 

}

setTimeout(function () {

getApp().settime(that, countdown)

}, 1000)

},