saveimagefile里没指定filePath

saveimagefile2里指定了filePath

结果：在getsavefiles里能查到saveimagefile保存的文件，查不到saveimagefile2保存的文件。

  saveimagefile(e){
    let that = this;
    var fsm = wx.getFileSystemManager();
    fsm.saveFile({
      tempFilePath: that.data.outpath,
      success(rs){
        that.setData({
          savefilepath: rs.savedFilePath
        }); 
      }
    });
  },
  saveimagefile2(e){
    let that = this;
    let userdatapath = wx.env.USER_DATA_PATH;
    console.log("userdatapath=",userdatapath);
    let savepath = userdatapath + "/123.jpg";
    var fsm = wx.getFileSystemManager();
    fsm.saveFile({
      tempFilePath: that.data.outpath,
      filePath: savepath,
      success(rs){
        that.setData({
          savefilepath: rs.savedFilePath
        }); 
      }
    });
  },
  getsavefiles(e){
    let that = this;
    var fsm = wx.getFileSystemManager();
    fsm.getSavedFileList({
      success(res){
        let flist = res.fileList;
        var str = "";
        for(var i=0;i<flist.length;i++){
          str = str+ flist[i].filePath+"\n";
        }
        console.log(str);
        that.setData({themsg: str});
      }
    });
  },