潇洒郎： Python学习cmd 模块

潇洒郎

于 2022-07-15 16:15:21 发布

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分类专栏： Python学习文章标签： Cmd模块 python

本文链接：https://blog.youkuaiyun.com/qq_32711799/article/details/125201536

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本文介绍了Python的cmd模块，包括cmdloop()、onecmd()、emptyline()等主要方法和prompt、intro等属性。重点讲解了以do_和help_开头的函数在命令行交互中的作用，并提供了一个简单的示例来展示cmd模块的使用。

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cmd 模块

from cmd import Cmd

下面为Cmd的初始化

class Cmd:
    """A simple framework for writing line-oriented command interpreters.

    These are often useful for test harnesses, administrative tools, and
    prototypes that will later be wrapped in a more sophisticated interface.

    A Cmd instance or subclass instance is a line-oriented interpreter
    framework.  There is no good reason to instantiate Cmd itself; rather,
    it's useful as a superclass of an interpreter class you define yourself
    in order to inherit Cmd's methods and encapsulate action methods.

    """
    prompt = PROMPT  # 默认为：(Cmd) 可修改，如改为 prompt="robot>"
    identchars = IDENTCHARS
    ruler = '