给孩子出100道 20以内的算术题

为了给孩子出随机口算题，几行代码搞定!

 

import random


def cale(minnum, maxnum, operator, maxsum=None, minsum=None):
    """随机出数学计算题"""
    while True:
        a = random.randint(minnum, maxnum)
        b = random.randint(minnum, maxnum)
        operator = random.choice(operator)
        if maxsum and minsum:
            if a + b <= maxsum and a - b > 0 and a + b >= minsum:
                # print(a, operator, b, '=', end="\t" * 2)
                return [str(a), operator, str(b), '=']

                break

        elif maxsum:
            if a + b <= maxsum and a - b > 0:
                print(a, operator, b, '=', end="\t" * 2)
                break
        else:
            print(a, operator, b, '=', end="\t" * 2)
            break


i = 1
while i <= 20:
    j = 1
    while j <= 5:
        caleline = cale(1, 100, '+-', 100, 20)
        res = ''.join(caleline)
        print(res, end="\t")

        j += 1
     #保存为文件
    file = "d:\\cale.txt"
    with open(file, 'a') as f:
        f.write(res)

    i += 1
    print("")