code: function getFileByName(filename){
      if(!isLoaded[filename]){
          isLoaded[filename] = true;
          let CIniUserMgr	= CreateFile(filename);
          if (CIniUserMgr.IsHave()) {
              iniList[filename] = CIniUserMgr;
          }
      }
      return iniList[filename];
  }
docs: 获取filename指定的文件
  @param filename
  @returns {*}