将文件名中有共同字符串的两个文件合并为一个新文件

import os

def merge_files_with_common_string(file1, file2):
    # 获取文件名中的共同字符串
    common_string = os.path.commonprefix([file1, file2])

    # 打开两个文件并读取内容
    with open(file1, 'r') as f1, open(file2, 'r') as f2:
        content1 = f1.read()
        content2 = f2.read()

    # 合并内容到新文件
    merged_content = content1 + content2
    merged_file = common_string + '_merged.txt'
    with open(merged_file, 'w') as f:
        f.write(merged_content)

    return merged_file

# 示例用法
file1 = 'file1.txt'
file2 = 'file2.txt'
merged_file = merge_files_with_common_string(file1, file2)
print('合并后的文件：', merged_file)