小学四则运算

个 人能力不足 搬运部分较多 以及代码 有部分未完成（以及错误）
import random

def  abc():
    sym=['＋', '－', '×', '÷']
    a = random.randint(1, 4)
    # 生成随机数来对运算方式进行随机
    n1 = random.randint(1, 10)

    n2 = random.randint(1, 10)

    result = 0
    if a == 1:
        result = n1 + n2
        return result
    elif a == 2:
        result = n1 - n2
        return result
　　elif a == 3：
　　　　　resul = n1 * n2
　　　　　return result
    elif a == 4:
        while n1 % n2 != 0:
            n1 = random.randint(1, 10)

            n2 = random.randint(1, 10)

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

            result = int(n1 / n2)
    print(n1, sym[a], n2, '= ', end='')

    return result

def  test():
    n = int(input('请输入需要的题数:'))

    result = []

    m = 0

    while m <= (n - 1):
        print(m + 1, end='、')

        result.append(result())

        print(' ')

        m = m + 1

    m = 0

    print('对应的答案：')

    while m <= (n - 1):
        print(m + 1, '、', result[m])

        m = m + 1

print('选择想要的模式')

print('1、进行四则运算')

print('2、制作题库')

n = int(input())

if n == 1:
    while True:

        result = abc()

        j = input()

        s = int(j)

        if s == result:

            print('right')

        else:

            print('error.，the answer is', result)

if n == 2:
    test()