在Python中，可通过help ()函数、dir ()函数或访问官方文档查看模块和函数的使用方法。了解模块包含哪些函数及其用法至关重要，若不知如何查阅文档，学习Python将变得困难许多。

可通过内置的help()函数查看函数或模块的详细信息，了解其具体用途和使用方法，例如：调用help(函数名)即可获取相关说明文档。 1、 启动任意Python编辑器，操作所示。 2、 要查看sys模块的详细信息，可运行指定代码，实际效果见示意图。 3、 如需查看列表详细信息，可运行图示代码，具体效果参见对应图示。 4、 若需查看列表方法append的详细信息，可运行相应代码，具体效果见示意图。

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