用python写一个图片质量压缩的脚本

以下是一个基于Pillow库的图片质量压缩脚本：

from PIL import Image
import os

def compress_image(image_path, quality):
    """
    压缩图片质量
    :param image_path: 图片路径
    :param quality: 压缩质量，取值范围0-100
    """
    with Image.open(image_path) as img:
        img.save(image_path, quality=quality)

def compress_images_in_folder(folder_path, quality):
    """
    压缩文件夹中所有图片的质量
    :param folder_path: 文件夹路径
    :param quality: 压缩质量，取值范围0-100
    """
    for filename in os.listdir(folder_path):
        if filename.endswith(".jpg") or filename.endswith(".png"):
            image_path = os.path.join(folder_path, filename)
            compress_image(image_path, quality)

if __name__ == '__main__':
    folder_path = "path/to/folder"
    quality = 50
    compress_images_in_folder(folder_path, quality)

使用时，将`path/to/folder`替换为要压缩图片的文件夹路径，将`quality`替换为要压缩到的质量值（取值范围为0-100），然后运行脚本即可。脚本会自动扫描指定文件夹中的所有图片，对它们的质量进行压缩。