小程序实现多个选项卡切换

<view class='content'>
<view class='tab {{idx == index"type-item-on" : ""}}' data-index='{{index}}' catchtap='tab' wx:for='{{tab}}' wx:key='key'>{{item.title}}</view>
</view>
<view wx:if='{{idx == 0}}' class='tab1' data-id='0' bindtouchmove="handletouchmove">1111</view>
<view wx:if='{{idx == 1}}' class='tab2' data-id='1' bindtouchmove="handletouchmove">222</view>
<view wx:if='{{idx == 2}}' class='tab3' data-id='2' bindtouchmove="handletouchmove">333</view>

page {
width: 100%;
height: 100%;
}
 
.content {
width: 100%;
display: flex;
justify-content: space-around;
}
 
.tab {
width: 30%;
height: 80rpx;
text-align: center;
line-height: 80rpx;
background: #f0f0f0;
padding: 5rpx;
}
 
.type-item-on {
border-bottom: 4rpx solid #e64340;
color: red;
}
 
.tab1 {
width: 100%;
height: 100%;
background: orange;
}

//logs.js
Page({
 
 /**
 * 页面的初始数据
 */
 data: {
 tab: [{
  title: '111',
  id: 0
 },
 {
  title: '222',
  id: 1
 },
 {
  title: '333',
  id: 3
 },
 
 ],
 idx: 0, //默认选中第一项
 
 
 },
 
 /**
 * 生命周期函数--监听页面加载
 */
 onLoad: function (options) {
 
 },
 // tab
 tab(e) {
 let that = this;
 let index = e.currentTarget.dataset.index;
 that.setData({
  idx: index,
 })
 
 }
})