//.js

Page({

  /**

   * 页面的初始数据

   */

  data: {

    currentTab: 0,

    imgalist0: [ 'https://lg-1c7jwm16-1257218715.cos.ap-shanghai.myqcloud.com/309586315285779976.jpg',

      'https://lg-1c7jwm16-1257218715.cos.ap-shanghai.myqcloud.com/e6b5f06c7655fd7fa9699987c4578641_u%3D1837457002%2C1490875854%26fm%3D27%26gp%3D0.jpg' 

              ],

    imgalist1: ['https://lg-1c7jwm16-1257218715.cos.ap-shanghai.myqcloud.com/e6b5f06c7655fd7fa9699987c4578641_u%3D1837457002%2C1490875854%26fm%3D27%26gp%3D0.jpg',

      'https://lg-1c7jwm16-1257218715.cos.ap-shanghai.myqcloud.com/309586315285779976.jpg' 

    ],

    imgalist2: ['https://lg-1c7jwm16-1257218715.cos.ap-shanghai.myqcloud.com/309586315285779976.jpg',

'https://lg-1c7jwm16-1257218715.cos.ap-shanghai.myqcloud.com/309586315285779976.jpg'

    ]

  },

   /** 

     * 预览图片

     */

  previewImage: function (e) {

    var current = e.target.dataset.src;

    wx.previewImage({

      current: current, // 当前显示图片的http链接

      urls: this.data.imgalist0,

      urls: this.data.imgalist1,

      urls: this.data.imgalist2,// 需要预览的图片http链接列表

    })

  }

  })

<!--pages/index/index/tb/tb.wxml-->

<view class="swiper-tab">

    <view class="swiper-tab-item {{currentTab==0?'active':''}}" data-current="0" bindtap="clickTab">第一个</view>

    <view class="swiper-tab-item {{currentTab==1?'active':''}}" data-current="1" bindtap="clickTab">第二个</view>

    <view class="swiper-tab-item {{currentTab==2?'active':''}}" data-current="2" bindtap="clickTab">第三个</view>

</view>

<view>

<swiper current="{{curr