微信小程序选项卡的实现方法

<view class="swiper-tab">
  <view class="swiper-tab-item {{currentTab==0?'active':''}}" data-current="0" bindtap="clickTab">一</view>
  <view class="swiper-tab-item {{currentTab==1?'active':''}}" data-current="1" bindtap="clickTab">二</view>
  <view class="swiper-tab-item {{currentTab==2?'active':''}}" data-current="2" bindtap="clickTab">三</view>
</view>

<swiper current="{{currentTab}}" duration="300" bindchange="swiperTab">
  <swiper-item><view>第一屏</view></swiper-item>
  <swiper-item><view>第二屏</view></swiper-item>
  <swiper-item><view>第三屏</view></swiper-item>
</swiper>

var app=getApp()
Page({
 data:{
  currentTab:0
 },
 onLoad:function(options){
  // 页面初始化 options为页面跳转所带来的参数

 },
 //滑动切换
 swiperTab:function( e ){
  var that=this;
  that.setData({
   currentTba:e.detail.current
  });
 },
 //点击切换
 clickTab: function( e ) { 

  var that = this; 

  if( this.data.currentTab === e.target.dataset.current ) { 
   return false; 
  } else { 
   that.setData( { 
    currentTab: e.target.dataset.current 
   }) 
  } 
 } 

})

.swiper-tab{
  width: 100%;
  border-bottom: 2rpx solid #ccc;
  text-align: center;
  height: 88rpx;
  line-height: 88rpx;
  font-weight: bold;
}
.swiper-tab-item{
  display: inline-block;
  width: 33.33%;
  color:red;
}
.active{
  color:aqua;
  border-bottom: 4rpx solid red;
}