小学四则运算编程

代码内容：

1、引入随机函数，随机生成四种运算类型和需要运算的数值

import random

def szys():

    sym = ['+','-','×','÷']

    a = random.randint(0,3)

    n1 = random.randint(1,20)

    n2 = random.randint(1,20)

    result = 0

    if a == 0:

       result = n1 + n2

    elif a == 1:

       n1,n2 = max(n1,n2),min(n1,n2)    

       result = n1 - n2

    elif a == 2:

       result = n1 * n2

    elif a == 3:

       n1,n2 = max(n1,n2),min(n1,n2)

       while n1 % n2 != 0:

           n1 = random.randint(1,20)

           n2 = random.randint(1,20)

           n1,n2 = max(n1,n2),min(n1,n2)

       result = int(n1/n2)

    print(n1,sym[a],n2,'=',end="")

    return result

2、自定义需要题目的数量

def test():

    sym = ['+','-','×','÷']

    print('请输入需要题目的数量：')

    n= int(input())

    result = []

    m = 0

    while m <=(n-1):

        print(m+1,end='、')

        result.append(szys())

        print(' ')

        m = m+1

    m = 0

    print('对应的答案是：')

    while m <= (n-1):

        print(m+1,'、',result[m])

        m = m+1

       

test()

 

运行截图：