官网文档：https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/share.html

第一种情况 点击小程序转发

不加入参数

  //转发
  onShareAppMessage: function() {
    let users = wx.getStorageSync('user');
    if (res.from === 'button') {}
    return {
      title: '转发',
      path: '/pages/index/index',
      success: function(res) {}
    }
  }

加入参数

  //转发
  onShareAppMessage: function() {
    let users = wx.getStorageSync('user');
    if (res.from === 'button') {}
    return {
      title: '转发',
      path: '/pages/index/index?from_uid=' + users.id,
      success: function(res) {}
    }
  }

第二种 分享

这个分享必须做成button 且加上 open-type="share"

不加入参数

  onShareAppMessage: function (res) {
    if (res.from === 'button') {
    }
    return {
      title: '转发',
      path: '/pages/index/community/topic/topic',
      success: function (res) {
        console.log('成功', res)
      }
    }
  }

加入参数 

  //转发
  onShareAppMessage: function (res) {
    if (res.from === 'button') {

    }
    return {
      title: '转发',
      path: '/pages/index/community/topic/topic?jsonStr=' + this.data.list,
      success: function (res) {
        console.log('成功', res)
      }
    }
  }

提醒：

这里转发的参数要在onLoad 的options 运用