-- coding: utf-8 -- import io from pathlib import Path from PIL import Image def parse_bg_captcha(img, im_show=False, save_path=None): if isinstance(img, (str, Path)): _img = Image.open(img) elif isinstance(img, bytes): _img = Image.open(io.BytesIO(img)) else: raise ValueError(f'输入图片类型错误, 必须是<type str>/<type Path>/<type bytes>: {type(img)}') # 图片还原顺序, 定值 _Ge = [39, 38, 48, 49, 41, 40, 46, 47, 35, 34, 50, 51, 33, 32, 28, 29, 27, 26, 36, 37, 31, 30, 44, 45, 43, 42, 12, 13, 23, 22, 14, 15, 21, 20, 8, 9, 25, 24, 6, 7, 3, 2, 0, 1, 11, 10, 4, 5, 19, 18, 16, 17] w_sep, h_sep = 10, 80 # 还原后的背景图 new_img = Image.new('RGB', (260, 160)) for idx in range(len(_Ge)): x = _Ge[idx] % 26 * 12 + 1 y = h_sep if _Ge[idx] > 25 else 0 # 从背景图中裁剪出对应位置的小块 img_cut = _img.crop((x, y, x + w_sep, y + h_sep)) print(img_cut) # 将小块拼接到新图中 new_x = idx % 26 * 10 new_y = h_sep if idx > 25 else 0 new_img.paste(img_cut, (new_x, new_y)) if im_show: new_img.show() if save_path is not None: save_path = Path(save_path).resolve().str() new_img.save(save_path) return new_img if name == 'main': parse_bg_captcha("bg.webp", im_show=True, save_path='bg.jpg')这段代码请用Node.js编写一份

以下是使用Node.js的实现代码，使用了Jimp库来处理图像：

const Jimp = require('jimp');
const path = require('path');

async function parseBgCaptcha(imgPath, imShow = false, savePath = null) {
  const img = await Jimp.read(imgPath);
  const _Ge = [
    39, 38, 48, 49, 41, 40, 46, 47, 35, 34, 50, 51, 33, 32, 28, 29, 27, 26, 36,
    37, 31, 30, 44, 45, 43, 42, 12, 13, 23, 22, 14, 15, 21, 20, 8, 9, 25, 24, 6,
    7, 3, 2, 0, 1, 11, 10, 4, 5, 19, 18, 16, 17
  ];
  const wSep = 10, hSep = 80;
  const newImg = new Jimp(260, 160, 0xffffff);
  for (let idx = 0; idx < _Ge.length; idx++) {
    const x = (_Ge[idx] % 26) * 12 + 1;
    const y = _Ge[idx] > 25 ? hSep : 0;
    const imgCut = img.clone().crop(x, y, wSep, hSep);
    const new_x = idx % 26 * 10;
    const new_y = idx > 25 ? hSep : 0;
    newImg.composite(imgCut, new_x, new_y);
  }
  if (imShow) {
    newImg.write('new_img.jpg');
  }
  if (savePath) {
    const absPath = path.resolve(savePath);
    await newImg.writeAsync(absPath);
  }
  return newImg;
}

parseBgCaptcha('bg.webp', true, 'bg.jpg');

请注意，这里使用了async/await异步编程模型。此外，需要先安装Jimp库，可以使用npm install jimp命令进行安装。