dom部分
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<text wx:if="{{reSend}}" bindtap='countdown'>獲取驗證碼</text>
<text wx:else>{{second}}</text>
data部分
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data: {
second: 60,
reSend: true
}
js部分
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countdown: function () {
var nsecond = 60;
var that = this;
var appCount = setInterval(function () {
nsecond -= 1;
that.setData({
second: nsecond+' s',
reSend: false
})
if (nsecond < 1) {
clearInterval(appCount);
//取消指定的setInterval函數將要執行的代碼
that.setData({
second: 60,
reSend: true
})
}
}, 1000);
}