将fs用于文件系统和LZMA

const compressImage = (imagePath) => {
  return new Promise((resolve, reject) => {
    fs.readFile(imagePath, (readError, imageData) => {
      if (readError) {
        reject(readError);
        return;
      }

      lzma.compress(imageData, 9, (compressedData, compressError) => {
        if (compressError) {
          reject(compressError);
        } else {
          resolve(compressedData);
        }
      });
    });
  });
};

字符串
使用这个

compressImage(imagePath)
  .then((compressedData) => {
    console.log('Image compressed successfully:', compressedData);
  })

型