Python | 如何创建模块（模块示例）？

This is an example of creating module in python. Module files are special file that are used as library files and can be accessed in another file.

这是在python中创建模块的示例。模块文件是用作库文件的特殊文件，可以在另一个文件中访问。

In this example, there are two module files "mycheck.py" and "mymath.py" – the modules contains the functions related to the checking the numbers and mathematical operations

在此示例中，有两个模块文件“ mycheck.py”和“ mymath.py” –这些模块包含与检查数字和数学运算有关的功能

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pycheck.py

def iseven(n):
ans=False
if n%2==0:
ans=True
return ans
def isodd(n):
ans=False
if n%2==1:
ans=True
return ans
def isprime(n):
ans=False
c=0
for i in range(1,n+1):
if n%i==0:
c=c+1
if c==2:
ans=True
return ans
def ispalindrome(n):
ans=False
m=n
rev=0
while n>0:
dig=n%10
rev = rev*10+dig
n=n//10
if rev==m:
ans=True
return ans

mymath.py

def sum(a,b):
c=a+b
return c
def difference(a,b):
c=a-b
return c
def product(a,b):
c=a*b
return c
def quotient(a,b):
c=a/b
return c
def remainder(a,b):
c=a%b
return c

Now, we are implementing the operations from the module functions in the below examples:

现在，我们在以下示例中通过模块功能实现操作：

Example 1) menu.py

示例1)menu.py

In this program all the functions of both modules i.e. mycheck.py/mymath.py are get loaded in menu.py’s memory and have to use module name as parent to access child functions.

在此程序中，两个模块的所有功能(即mycheck.py/mymath.py)都加载到menu.py的内存中，并且必须使用模块名称作为父项来访问子函数 。

import os
import mymath
import mycheck
def main():
ans=True
while ans:
os.system('cls')
print("MENU")
print("--------------------------------------")
print("1.Add")
print("2.Substract")
print("3.Multiply")
print("4.Divide")
print("5.Even Check")
print("6.Odd Check")
print("7.Prime Check")
print("8.Palindrome Check")
print("9.Exit")
print("-------------------------------------")
ch=int(input("Enter choice(1-9):"))
print("-------------------------------------")
if ch==1:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = mymath.sum(a,b)
print("Sum    :",c)
elif ch==2:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = mymath.difference(a,b)
print("difference    :",c)
elif ch==3:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = mymath.product(a,b)
print("Product    :",c)
elif ch==4:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = mymath.quotient(a,b)
print("Quotient    :",c)
elif ch==5:
n = int(input("Enter N: "))
if mycheck.iseven(n)==True:
print(n,"is Even")
else:
print(n,"is Not Even")
elif ch==6:
n = int(input("Enter N: "))
if mycheck.isodd(n)==True:
print(n,"is Odd")
else:
print(n,"is Not Odd")
elif ch==7:
n = int(input("Enter N: "))
if mycheck.isprime(n)==True:
print(n,"is Prime")
else:
print(n,"is Not Prime")
elif ch==8:
n = int(input("Enter N: "))
if mycheck.ispalindrome(n)==True:
print(n,"is Palindrome")
else:
print(n,"is Not Palindrome")
elif ch==9:
ans=False
print("-------------------------------------")
input("Press any key.....")
if __name__=="__main__":main()

Example 2) menu2.py

示例2)menu2.py

In this program all the functions of both modules i.e. mycheck.py/mymath.py are get loaded in menu2.py’s memory and child functions can be called directly

在该程序中，两个模块的所有功能(即mycheck.py/mymath.py)都加载到menu2.py的内存中，并且可以直接调用子功能

from os import *
from mymath import *
from mycheck import *
def main():
ans=True
while ans:
system('cls')
print("MENU")
print("--------------------------------------")
print("1.Add")
print("2.Substract")
print("3.Multiply")
print("4.Divide")
print("5.Even Check")
print("6.Odd Check")
print("7.Prime Check")
print("8.Palindrome Check")
print("9.Exit")
print("-------------------------------------")
ch=int(input("Enter choice(1-9):"))
print("-------------------------------------")
if ch==1:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = sum(a,b)
print("Sum    :",c)
elif ch==2:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = difference(a,b)
print("difference    :",c)
elif ch==3:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = product(a,b)
print("Product    :",c)
elif ch==4:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = quotient(a,b)
print("Quotient    :",c)
elif ch==5:
n = int(input("Enter N: "))
if iseven(n)==True:
print(n,"is Even")
else:
print(n,"is Not Even")
elif ch==6:
n = int(input("Enter N: "))
if isodd(n)==True:
print(n,"is Odd")
else:
print(n,"is Not Odd")
elif ch==7:
n = int(input("Enter N: "))
if isprime(n)==True:
print(n,"is Prime")
else:
print(n,"is Not Prime")
elif ch==8:
n = int(input("Enter N: "))
if ispalindrome(n)==True:
print(n,"is Palindrome")
else:
print(n,"is Not Palindrome")
elif ch==9:
ans=False
print("-------------------------------------")
input("Press any key.....")
if __name__=="__main__":main()

Example 3) menu3.py

示例3)menu3.py

In this program only few functions of both modules i.e. mycheck.py/mymath.py are get Loaded in menu3.py's memory and child functions can be called directly

在该程序中，两个模块中只有少数几个函数(即mycheck.py/mymath.py)被加载到menu3.py的内存中 ， 子函数可以直接调用

from os import system
from mymath import sum,difference
from mycheck import iseven,isprime,ispalindrome
def main():
ans=True
while ans:
system('cls')
print("MENU")
print("--------------------------------------")
print("1.Add")
print("2.Substract")
print("3.Even Check")
print("4.Prime Check")
print("5.Palindrome Check")
print("6.Exit")
print("-------------------------------------")
ch=int(input("Enter choice(1-6):"))
print("-------------------------------------")
if ch==1:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = sum(a,b)
print("Sum    :",c)
elif ch==2:
a = int(input("Enter A: "))
b = int(input("Enter B: "))
c = difference(a,b)
print("difference    :",c)
elif ch==3:
n = int(input("Enter N: "))
if iseven(n)==True:
print(n,"is Even")
else:
print(n,"is Not Even")
elif ch==4:
n = int(input("Enter N: "))
if isprime(n)==True:
print(n,"is Prime")
else:
print(n,"is Not Prime")
elif ch==5:
n = int(input("Enter N: "))
if ispalindrome(n)==True:
print(n,"is Palindrome")
else:
print(n,"is Not Palindrome")
elif ch==6:
ans=False
print("-------------------------------------")
input("Press any key.....")
if __name__=="__main__":main()

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