007 Python Modules and functions

# Python
What others have written (library)
A:*foo1 Foo2 Foo3 Foo4
B:*foo2 foo1 Foo3 Foo4
From xx import xx
From XX is a bag of things
__xx__.py not open to the public

 1  #   filedemo.py  2  #  -*-coding:utf-8-*- 3  4  Span style= "COLOR: #0000ff" >def   Foodemo ():  5  print  ( filldemo.filedemo.ffoodemo ()   "" Span style= "COLOR: #000000" >)  6  

1 # demo.py 2 # -*-coding:utf-8-*- 3  from Import Foodemo 4     5 Foodemo ()

Homework Explanation
New shop.py
New login.py

0 with open ("Userinfo.txt") as File:
Equivalent to doing the following two lines of code at the same time
You don't have to worry about the file being closed.
file = open ("Userinfo.txt") #r read mode
File.close ()

1 #login.py2 #-*-coding:utf-8-*-3Userinfos = [] 4With open ("Userinfo.txt") as File:#ensure the timeliness of data5      forIteminchfile.readlines ():6 userinfos.addend (item)7 defLogin (NAME,PSW):8          forUserInfoinchUserinfos:9temp =Userinfo.split ()Ten             ifName = = Temp[0] andPSW = = Temp[1]: One                 returnTrue#Landing Success A         Else: -             returnFalse#Login Failed

1 #shop.py2 #-*-coding:utf-8-*-3  fromLoginImportLogin4 #Login5Name = input ("Logo ID:")6PSW = input ("\r\nlogo PSW:")7 8 if(Login (NAME,PSW)):9     Print("\r\nok")Ten Else: One     Print("\r\nno") A     

two files which run first
0 The imported file executes the code once.
0 because Python is an explanatory language, the main function does not exist. PY Inside
0__name__ Each program has a default variable
If the file executing the code is a __main__

1 #logo.py2 #-*-coding:utf-8-*-3 Print(__name__)4Userinfos = [] 5With open ("Userinfo.txt") as File:#ensure the timeliness of data6      forIteminchfile.readlines ():7 userinfos.append (item)8 defLogin (NAME,PSW):9          forUserInfoinchUserinfos:Tentemp =Userinfo.split () One             ifName = = Temp[0] andPSW = = Temp[1]: A                 returnTrue#Landing Success -         Else: -             returnFalse#Login Failed the      -      - if __name__=='__main__': -     ifLogin (Input ("Name:"), Input ("\r\npassword")): +             Print("\r\nok") -     Else: +         Print("\r\nno")

1 #shop.py2 #-*-coding:utf-8-*-3  fromLoginImportLogin4 #Login5 6 if __name__=='__main__':7Name = input ("Logo ID:")8PSW = input ("\r\nlogo PSW:")9 Ten     if(Login (NAME,PSW)): One         Print("\r\nok") A     Else: -         Print("\r\nno")

1 #user.py2 #-*-coding:utf-8-*-3Form LoginImportLogin4  defUserpay (Name,psw,money):5      ifLogin (NAME,PSW):6          Print("authorization to start the charge successfully)7 With open (file) as data:8              forIteminchdata.readlines ():9UserInfo =Item.split ()Ten                 ifName = =Userinfo[0]: OneUSERINFO[3]-= Money A      Else -           Print("Authorization Failure")

the way of the function

def foo (*arg):

An asterisk is a list of transmitted

　　　　def foo (**arg):

Two asterisk is a dictionary for transmission

007 Python Modules and functions