import os
import shutil


def rename_files(directory):
    for filename in os.listdir(directory):
        # 检查文件名中是否包含大写的"JPG"
        if "JPG" in filename:
            # 构建新的文件名，将"JPG"替换为"jpg"
            new_filename = filename.replace("JPG", "jpg")
            old_file_path = os.path.join(directory, filename)
            new_file_path = os.path.join(directory, new_filename)

            # 重命名文件
            print(f"Renaming '{filename}' to '{new_filename}'")
            shutil.move(old_file_path, new_file_path)


# 使用你的图片目录替换下面的'directory_path'
directory_path = './images'
rename_files(directory_path)