微信小程序之发送短信倒计时功能
时间：2021-08-25 08:02:38 | 栏目：JavaScript代码 | 点击：次
点击后
代码
<form bindsubmit="formSubmit" bindreset="formReset">
<view class="fidpas">
<input type="number" class="fidpas_inp"placeholder-class="lgin_place" placeholder="请输入手机号" name="phonenumber" />
<input type="number" class="fidpas_inp2"placeholder-class="lgin_place" placeholder="请输入短信验证码" name="msg" />
<button class="{{sendmsg}}" bindtap="sendmessg">{{getmsg}}</button>
</view>
<button class="lgbut" formType="submit">下一步</button>
</form>
data: {
sendmsg: "sendmsg",
getmsg:"获取短信验证码",
},
/**
* 获取短信验证码
*/
sendmessg:function(e){
if (timer==1){
timer=0
var that=this
var time=60
that.setData({
sendmsg:"sendmsgafter",
})
var inter=setInterval(function(){
that.setData({
getmsg: time + "s后重新发送",
})
time--
if(time<0){
timer=1
clearInterval(inter)
that.setData({
sendmsg: "sendmsg",
getmsg: "获取短信验证码",
})
}
},1000)}
},
思路：将BUTTON后样式和内容设为变量，点击之后setData将其改变即可
总结