简洁的用Python写小学生数学四则运算练习游戏

这是一个简单的小学生数学四则运算练习游戏，可以让小学生练习加减乘除运算。

import random

# 生成随机数
def generate_number():
    return random.randint(1, 10)

# 生成随机运算符
def generate_operator():
    operators = ['+', '-', '*', '/']
    return random.choice(operators)

# 计算表达式的值
def calculate_result(num1, num2, operator):
    if operator == '+':
        return num1 + num2
    elif operator == '-':
        return num1 - num2
    elif operator == '*':
        return num1 * num2
    elif operator == '/':
        return num1 / num2

# 主程序
def main():
    correct_answers = 0
    num_questions = 5
    for i in range(num_questions):
        num1 = generate_number()
        num2 = generate_number()
        operator = generate_operator()
        expression = str(num1) + operator + str(num2) + '='
        user_answer = input(expression)
        expected_answer = str(calculate_result(num1, num2, operator))
        if user_answer == expected_answer:
            print('Correct!')
            correct_answers += 1
        else:
            print(f'Incorrect! The correct answer is {expected_answer}.')
    print(f'You answered {correct_answers} out of {num_questions} questions correctly.')

if __name__ == '__main__':
    main()

运行结果：

3+7=10
Correct!
5+7=12
Correct!
5+5=10
Correct!
5-1=4
Correct!
8*7=56
Correct!
You answered 5 out of 5 questions correctly.