基于 hash 算法

import os
import sys
import hashlib

def compute_hash(file_path):
    with open(file_path, 'rb') as file:
        content = file.read()
        hash_object = hashlib.md5(content)
        return hash_object.hexdigest()

def find_different_files(folder1, folder2):
    for root, dirs, files in os.walk(folder1):
        for file in files:
            file_path1 = os.path.join(root, file)
            file_path2 = os.path.join(folder2, os.path.relpath(file_path1, folder1))
            
            if os.path.exists(file_path2):
                hash1 = compute_hash(file_path1)
                hash2 = compute_hash(file_path2)
                
                if hash1 != hash2:
                    print("文件不同:", file)
                    print("路径1:", file_path1)
                    print("路径2:", file_path2)
                    print()
            else:
                print("文件不存在于folder2:", file)
                print("路径1:", file_path1)
                print()
    
    # 遍历folder2，查找folder1不存在的文件
    for root, dirs, files in os.walk(folder2):
        for file in files:
            file_path2 = os.path.join(root, file)
            file_path1 = os.path.join(folder1, os.path.relpath(file_path2, folder2))
            
            if not os.path.exists(file_path1):
                print("文件不存在于folder1:", file)
                print("路径2:", file_path2)
                print()

if __name__ == "__main__":
    if len(sys.argv) != 3:
        print("请输入正确的文件夹路径作为参数！")
        print("用法： file_diff <folder1> <folder2>")
        os.system("pause")
    else:
        folder1 = sys.argv[1]
        folder2 = sys.argv[2]
        find_different_files(folder1, folder2)

测试效果