Python关键字角色

Question

我在网上查找了所有Python关键字的列表以及它们的作用,但是我只能找到关键字列表而不解释它们的作用.示例:http://docs.python.org/release/2.3.5/ref/keywords.html.所以基本上,如果我想知道关键字是什么,我必须在网上寻找它.虽然这并不是很麻烦,但我相信必须有一个来源,所有这些信息都已被分组,加快了关键字学习过程.

所以我想知道这里是否有人可以将我推荐到一个我可以找到所有这些信息的网站.

谢谢 !

Answer 1

奇怪的是,这是谷歌搜索python关键词和解释的第一个结果.

Answer 2

在python解释器提示符中:

>>> help()

[OMITTED LINES FOR BREVITY]

To get a list of available modules, keywords, or topics, type "modules",
"keywords", or "topics".  Each module also comes with a one-line summary
of what it does; to list the modules whose summaries contain a given word
such as "spam", type "modules spam".

help> keywords

Here is a list of the Python keywords.  Enter any keyword to get more help.

and                 elif                if                  print
as                  else                import              raise
assert              except              in                  return
break               exec                is                  try
class               finally             lambda              while
continue            for                 not                 with
def                 from                or                  yield
del                 global              pass                

help> 

现在要获取有关例如break的信息,只需输入"break"然后输入即可.

另外,如果您需要有关当前正在运行的python版本的关键字的信息(例如yield,我的python版本中的关键字？),则有关键字模块:

>>> from keyword import kwlist, iskeyword
>>> kwlist
['and', 'as', 'assert', 'break', 'class', 'continue', 'def', 'del', 'elif', 
'else', 'except', 'exec', 'finally', 'for', 'from', 'global', 'if', 'import', 
'in', 'is', 'lambda', 'not', 'or', 'pass', 'print', 'raise', 'return', 'try', 
'while', 'with', 'yield']
>>> iskeyword("and")
True