if(that.data.num==2){
    db.collection('ux').where({
      _id:that.data.imgs[e.currentTarget.dataset.bindex]._id
    }).get({
      success(res) {
        that.setData({
         zan_number:res.data[0].zan_number
        })
        db.collection('ux').where({
          _id:that.data.imgs[e.currentTarget.dataset.bindex]._id
        }).update({
          data: {
           zan_number: that.data.zan_number+1,
           zan_people:app.globalData.userName
          },
          success:res=>{
            wx.reLaunch({
              url: '/pages/works/works'
            })
          }
        })
        console.log(res.data[0].zan_number)
      }
    })
  }

wx.reLaunch这里跳转后 登录头像会不见 登录信息还保留，是因为它是永久重定向，删除全部历史吗？

接着我用了wx.redirectTo方法，后报错

代码如下：

 if(that.data.num==3){
    db.collection('web').where({
      _id:that.data.imgs[e.currentTarget.dataset.bindex]._id
    }).get({
      success(res) {
        that.setData({
         zan_number:res.data[0].zan_number
        })
        db.collection('web').where({
          _id:that.data.imgs[e.currentTarget.dataset.bindex]._id
        }).update({
          data: {
           zan_number: that.data.zan_number+1,
           zan_people:app.globalData.userName
          },
          success:res=>{
            wx.redirectTo({
              url: '/pages/works/works'
            })
          }
        })
        console.log(res.data[0].zan_number)
      }
    })
  }