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});       }     });   },