Python Basics-Modules

1. What is a module?

Can be understood as a py file is a module, such as xiaoming.py is a module, want to introduce it,

So just write the import xiaoming in the code.

2. The module first queries from the current directory, if no more query by Path Order (Sys.path)

3. A module will only be imported once, no matter how many times you import it. This prevents the import module from being executed over and over.

#调用模块
Import sum

#调用模块里的方法
Print (Sum.add_two_num)

#from ... import

The FROSM statement in 1.python lets you import a specified section from a module

2.from...import* all the contents of a module are imported

#要导入模块sum中的add_two_num函数

From sum import add_two_num

#直接调用方法

Print (Add_two_num (2,2))

Python Basics-Modules