resources下rawfile 的文本文件在应用开发中如何获取？

getContext(this).resourceManager.getRawFileContent('test.txt', (_err, value) => { 
      let myBuffer: ArrayBufferLike = value.buffer; 
      let context = getContext(this); 
      let filePath = context.filesDir + '/111.txt'; 
      console.info('testTag-filePath:' + filePath); 
      let file = fileIo.openSync(filePath, fileIo.OpenMode.READ_WRITE | fileIo.OpenMode.CREATE); 
      let writeLen = fileIo.writeSync(file.fd, myBuffer); 
      console.info('testTag-write data to file succeed and size is:' + writeLen); 
      fileIo.closeSync(file); 
    });