def file_write(file_name): f = open(file_name,'w') print('请输入内容【单独输入\':w\'保存退出】:') while True: write_some = input() if write_some != ':w': f.write('%s\n'%write_some) else: break f.close() file_name = input('请输入文件名:') file_write(file_name)