print(5/0)
print('得到两个数来进行除法运算')
print("输入 'q' 退出")

while True:
    first_number = input('\n第一个数: ')
    if first_number == 'q':
        break
    second_number = input('第二个数: ')
    if second_number == 'q':
        break
    try:
        answer = int(first_number) / int(second_number)
    except ZeroDivisionError:
        print("You can't divide by zero!")
    else:
        print(answer)