我试图从一个输入文件夹中的图像与6位，优化他们相应地和输出他们作为WebP文件都具有不同的宽度被用作srcset图像内我的网站与名称对流为每个文件从1和升序，直到与子文件夹的图像列表完成。代码我已经得到了帮助写是

`
const fs = require('fs');
const sharp = require('sharp');

// Define the input directory
const inputDirectory = './input';

// Create an array to define categories and their settings
const categories = [
  { name: 'Important', minWidth: 1080, maxWidth: 2000, quality: 90 },
  { name: 'Gallery', minWidth: 800, maxWidth: 2000, quality: 80 },
  { name: 'Digitals', minWidth: 800, maxWidth: 2000, quality: 80 },
  { name: 'Contact', minWidth: 800, maxWidth: 1600, quality: 60 },
  { name: 'Misc', minWidth: 500, maxWidth: 1080, quality: 30 },
  { name: 'Loader', minWidth: 500, maxWidth: 1600, quality: 30 },
];

// Function to process images in a category
async function processCategory(category) {
  const inputFolder = `${inputDirectory}/${category.name}`;
  const outputFolder = `./output/${category.name}`;

  // Create the output folder if it doesn't exist
  if (!fs.existsSync(outputFolder)) {
    fs.mkdirSync(outputFolder, { recursive: true });
  }

  const files = fs.readdirSync(inputFolder);
  let imageNumber = 1;

  for (const file of files) {
    const inputPath = `${inputFolder}/${file}`;
    const image = sharp(inputPath);

    // Get image metadata
    const metadata = await image.metadata();

    // Check if the image width is within the specified range
    if (metadata.width >= category.minWidth && metadata.width <= category.maxWidth) {
      // Resize and optimize the image
      await image
        .webp({ quality: category.quality })
        .toFile(`${outputFolder}/${imageNumber}-${metadata.width}.webp`);

      imageNumber++;
    }
  }
}

// Main function to process all categories
async function processAllCategories() {
  for (const category of categories) {
    await processCategory(category);
  }
}

// Start the image processing
processAllCategories()
  .then(() => {
    console.log('Image processing completed.');
  })
  .catch((error) => {
    console.error('Error processing images:', error);
  });`

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然而，它只需要一个图像，并将其转换为900 p，就是这样！有人知道tf是怎么回事吗？谢谢你的时间，感谢你阅读这一点，卢克：）