1.preview.wxml

<view catch:tap="onTap" class="container">
  ....
</view>

2.preview的index.js

// components/preview/index.js
Component({
  methods: {
    onTap:function(event){
      this.triggerEvent('tapping',{
        cid:this.properties.classic.id,
        type:this.properties.classic.type
      },{})
    }
  }
})

3.my.wxml

<view class="container">
	....
   <v-preview bind:tapping="onJumpToDetail" class="preview" classic="{{item}}" />
</view>

4.my.js

onJumpToDetail(event){
    const cid = event.detail.cid
    const type = event.detail.type
    // console.log(cid)
    wx.navigateTo({
      url:`/pages/classic-detail/classic-detail?cid=${cid}&type=${type}`
    })
  }

5.classic-detail.js

data: {
    cid:0,
    type:100
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.data.cid = options.cid
    this.data.type = options.type
  },

6.classic-detail.wxml

<v-classic cid="{{cid}}" type="{{type}}" />

7.classic.js

onShow: function () {
    console.log(this.properties.type)
    //判断是不是带参数跳转过来的
    const cid = this.properties.cid
    const type = this.properties.type
    if (!cid) {
      classicModel.getLatest((res) => {
        this.setData({
          classic: res,
          likeCount: res.fav_nums,
          likeStatus: res.like_status
        })
      })
    }else{
      classicModel.getById(cid, type,res=>{
        console.log(res)
        this._getLikeStatus(res.id, res.type)
        this.setData({
          classic: res,
          latest: classicModel.isLatest(res.index),
          first: classicModel.isFirst(res.index)
        }) 
      })
    }
  },

在** 我的 ** 页面点击preview卡片时跳转，显示不出内容