Python实现整数的四则运算

import random


def compute(q, ans):
    symbol = random.randint(0, 3)  # 用0-3代表四则运算的符号
    n1 = random.randint(0, 100)  # 生成0-100之间的随机数
    n2 = random.randint(0, 100)
    if symbol == 0:
        q.append(str(n1) + '+' + str(n2) + '=')
        ans.append(n1 + n2)
    elif symbol == 1:
        n1, n2 = max(n1, n1), min(n1, n2)  # 防止出现负数
        q.append(str(n1) + '-' + str(n2) + '=')
        ans.append(n1 - n2)
    elif symbol == 2:
        q.append(str(n1) + '×' + str(n2) + '=')
        ans.append(n1 * n2)
    else:
        if n1 == 0:
            n2 = random.randint(1, 100)
        else:
            n2 = random.randint(1, n1 + 1)
        q.append(str(n1) + '÷' + str(n2) + '=')
        ans.append(n1/n2)  # 浮点数，除法结果至少要保留小数点后一位


def main():
    while 1:
        print("输入题目的数量", end='  ')
        k = int(input())
        s = 0  # 得分初始值为0
        q = []
        ans = []

        for i in range(k):
            compute(q, ans)

        for i in range(k):
            print("第{}题：{}".format(i + 1, q[i]), end="  ")
            a = input()
            if a == str(ans[i]):
                s = s + 1
        print("所得的分数为：{}".format(s))
        print("正确答案：", end="  ")
        for i in range(k):
            print(q[i] + str(ans[i]))


if __name__ == '__main__':
    main()

运行结果