help python（查看模块帮助文档）

最新推荐文章于 2025-09-12 15:58:40 发布

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最新推荐文章于 2025-09-12 15:58:40 发布

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文章标签： python

原文链接：http://www.cnblogs.com/zhizouxiao/p/3341286.html

本文介绍了如何使用Python内置的帮助文档查询功能，通过示例展示了如何查找内置函数、模块及特定方法的帮助信息。学习这些技巧有助于开发者更高效地利用Python的强大功能。

查看模块帮助文档：

help(len) -- docs for the built in len function (note here you type "len" not "len()" which would be a call to the function)
help(sys) -- overview docs for the sys module (must do an "import sys" first)
dir(sys) -- dir() is like help() but just gives a quick list of the defined symbols
help(sys.exit) -- docs for the exit() function inside of sys
help('xyz'.split) -- it turns out that the module "str" contains the built-in string code, but if you did not know that, you can call help() just using an example of the sort of call you mean: here 'xyz'.foo meaning the foo() method that runs on strings
help(list) -- docs for the built in "list" module
help(list.append) -- docs for the append() function in the list module

转载于:https://www.cnblogs.com/zhizouxiao/p/3341286.html