ReadFromFile:function (params) {

  let fsm = wx.getFileSystemManager();

  console.log(wx.env.USER_DATA_PATH),

    wx.saveFile({        

    tempFilePath: wx.env.USER_DATA_PATH + "/Crsmini.txt",

   success(res) {

      fsm.readFile({ 

         filePath:res.savedFilePath,

         encoding: 'utf8',

        success:function(res){

              console.log(res.data)  }

       })

     },

     fail: res => {  

      console.info(res)}  

})  

1. 这里是读取保存的文本问题，提示错误 {errMsg: "saveFile:fail tempFilePath file not exist"}
2. errMsg: "saveFile:fail tempFilePath file not exist"
3. __proto__: Object