微信小程序的转发分两张情况

1.自定义的转发按钮

2.小程序自带的右上角的转发按钮

小程序  API  https://developers.weixin.qq.com/miniprogram/dev/api/share.html

下图是自定义的转发按钮

xml

<view class='fl' style='width:55rpx;height:55rpx;margin-left:50%; margin-top:-10rpx;'>
     <button class='form_button' open-type="share">
        <image src='/images/icon/share.png'style='width:55rpx;height:55rpx;'></image>
     </button>
</view>

js

onShareAppMessage: function (res) {
    var that = this;
    console.log("openid" + wx.getStorageSync("openid"))
    if (res.from === "button") {
      console.log("来自页面内转发按钮");
      console.log(res.target);
    } else {
      console.log("来自右上角转发菜单")
    }
    return {
      title: '嘿，装修',
      path: '/pages/activity/userDetail / userDetail?articleid=' + that.data.articleid + '&shareid=' + wx.getStorageSync("openid"),
      
      success: (res) => {
        console.log("转发成功", res);
      },
      fail: (res) => {
        console.log("转发失败", res);
      }
    }
  },

 js中做了两种转发的判断，仅供参考，以后有机会会补上更全面的代码段