//獲取用戶的授權信息，放到本地緩存中  wx.getSetting({   success: (res) => {    if(res.authSetting['scope.userInfo'])    {     wx.setStorage({      key: 'can_getuserinfo',      data: 1,     })    }    else    {     wx.setStorage({      key: 'can_getuserinfo',      data: 0,     })    }   }  }),  //1:從本地緩存中獲取數據，如果獲取到根據結果顯示Index頁面的授權按鈕是否顯示，  //2:如果從本地緩存獲取不到數據則說明用戶清空了本地數據，默認設置為0，讓用戶重新授權  wx.getStorage({   key: 'can_getuserinfo',   success: function (res) {     console.log(res.data);    that.setData({     can_getuserinfo:res.data    })   },fail:function()   {    that.setData({     can_getuserinfo: 0    })   }  })   },

<view wx:if="{{can_getuserinfo==0}}"><text>/n</text><text>/n</text><text>/n</text><button wx:if="{{canIUse}}" open-type="getUserInfo" bindgetuserinfo="bindGetUserInfo">授權登錄</button><view wx:else>請升級微信版本</view></view>