怎么倒计时验证码？How to count down the verification code?
怎么倒计时验证码？
Page({ data: { smstxt:'获取' },sendonesms:function(){ var that = this; if( wait == 0){ this.setData({ smstxt:'获取' }) wait = 60; }else{ this.setData({ smstxt:wait.toString() }) wait--; setTimeout(function() { that.sendonesms }, 1000) } })} 点击之后，就变成60，就不倒计时了，怎么回事啊。哪里写错了，感觉没错啊。 <label bindtap="sendonesms">{{smstxt}} label>
Page ({data: {smstxt: 'get'}, s endonesms:function (){ var that = this; if( wait == 0){ this.setData ({smstxt: 'get'}) wait = 60;} else { this.setData ({ smstxt:wait.toString () }) wait--; setTimeout(function() { that.sendonesms After you click it, it turns to 60, and there is no countdown. What's going on. What's wrong? I feel right.
回答：
点击获取验证码的函数
let time = 60;
let timer = setInterval(() => {
time--;
if (time > 0) {
that.setData({
codeTxt: time + 's',
IsDisAbled: false,//不可点击
})
} else {
that.setData({
codeTxt: '再次获取验证码',
IsDisAbled: true//可点击
})
clearInterval(timer);
}
}, 1000);
wait是全局变量，在最上面
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