(1)help()#帮助
Welcome to Python 3.8's help utility!
If this is your first time using Python, you should definitely check out
the tutorial on the Internet at https://docs.python.org/3.8/tutorial/.
Enter the name of any module, keyword, or topic to get help on writing
Python programs and using Python modules. To quit this help utility and
return to the interpreter, just type "quit".
To get a list of available modules, keywords, symbols, or topics, type
"modules", "keywords", "symbols", or "topics". Each module also comes
with a one-line summary of what it does; to list the modules whose name
or summary contain a given string such as "spam", type "modules spam".
help>
You are now leaving help and returning to the Python interpreter.
If you want to ask for help on a particular object directly from the
interpreter, you can type "help(object)". Executing "help('string')"
has the same effect as typing a particular string at the help> prompt.
欢迎使用Python 3.8的帮助实用程序！
如果这是您第一次使用Python，则一定要签出
Internet上的教程https://docs.python.org/3.8/tutorial/。
输入任何模块，关键字或主题的名称以获取编写帮助
Python程序并使用Python模块。 要退出此帮助实用程序，并
返回解释器，只需键入“ quit”。
要获取可用模块，关键字，符号或主题的列表，请输入
“模块”，“关键字”，“符号”或“主题”。 每个模块还附带
单行总结其功能； 列出其名称的模块
或摘要包含给定的字符串（例如“ spam”），键入“ modules spam”。
帮助>
现在，您将离开帮助并返回到Python解释器。
如果您想直接从
解释程序，您可以键入“ help（object）”。 执行“ help（'string'）”
与在help>提示符下键入特定字符串的效果相同。