### Python 文件转换为 TXT 文件并添加行号注释 可以通过以下 Python 代码实现将 Python 文件转换为 TXT 文件并添加行号注释： ```python python_file_path = 'source.py' txt_file_path = 'target.txt' try: with open(python_file_path, 'r', encoding='utf-8') as python_file: lines = python_file.readlines() with open(txt_file_path, 'w', encoding='utf-8') as txt_file: for line_number, line in enumerate(lines, start=1): annotated_line = f"{line_number}: {line}" txt_file.write(annotated_line) print("转换成功！") except FileNotFoundError: print("源文件未找到，请检查文件路径。") except Exception as e: print(f"发生错误: {e}") ``` ### 将注释添加到 Python 代码末尾并对齐 可以通过以下代码实现将注释添加到 Python 代码末尾并对齐： ```python python_file_path = 'source.py' output_file_path = 'output.py' comment = "# 这是一个注释" try: with open(python_file_path, 'r', encoding='utf-8') as python_file: lines = python_file.readlines() max_length = max(len(line.rstrip()) for line in lines) with open(output_file_path, 'w', encoding='utf-8') as output_file: for line in lines: stripped_line = line.rstrip() padding = ' ' * (max_length - len(stripped_line)) new_line = f"{stripped_line}{padding} {comment}\n" output_file.write(new_line) print("注释添加并对齐成功！") except FileNotFoundError: print("源文件未找到，请检查文件路径。") except Exception as e: print(f"发生错误: {e}") ```