简单的加减法

最新推荐文章于 2024-09-29 10:07:25 发布

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最新推荐文章于 2024-09-29 10:07:25 发布

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CC 4.0 BY-SA版权

文章标签： python

原文链接：http://www.cnblogs.com/lsgo/p/10554527.html

该博客主要展示了用Python编写的math_game.py脚本，可随机生成两个100以内数字，随机选择加法或减法，减法时用大数字减小数字。若用户答错三次，程序会给出正确答案，还提供了继续或退出的交互功能。

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编写math_game.py脚本，实现以下目标：

随机生成两个100以内的数字
随机选择加法或是减法
总是使用大的数字减去小的数字

如果用户答错三次，程序给出正确答案

from random import randint, choice
def exam():
    counter = 0
    while counter < 3:
        nums = [randint(1, 100) for i in range(2)]
        nums.sort(reverse=True)
        op = choice('+-')
        if op == '-':
            result = nums[0] - nums[1]
        else:
            result = nums[0] + nums[1]
        prompt = '%s %s %s =' % (nums[0], op, nums[1])
        answer = int(input(prompt))
        if answer == result:
            print('very Good')
        else:
            print('\033[31;1msorry,You are wrong\033[0m')
            counter += 1


def main():
    while True:
        yn = input('Continue:/y/n ?').strip()[0]  # 去除空白 然后取第一位
        if yn in 'nN':
            print('\nBye-bye')
            break
        exam()


if __name__ == '__main__':
    main()

from random import randint, choice


def add(x,y):
    return x-y
def sum(x,y):
    return x+y

def exam():

        cmds = {'-':add,'+':sum}
        nums = [randint(1, 100) for i in range(2)]
        nums.sort(reverse=True)
        op = choice('+-')
        result = cmds[op](*nums)
        # print(*nums)
        # if op == '-':
        #     result = add(nums[0],nums[1])
        # else:
        #     result = sum(nums[0],nums[1])
        prompt = '%s %s %s =' % (nums[0], op, nums[1])

        counter = 0
        while counter < 3:
            try:
                answer = int(input(prompt))
            except:
                print()
                continue
            if answer ==result :
                print('very Good')
                break
            else:
                print('\033[31;1msorry,You are wrong\033[0m')
                counter += 1
        else:
            print('%s %s' %(prompt,result))


def main():

    while True:
        exam()
        try:
            yn = input('Continue:/y/n ?').strip()[0]  # 去除空白 然后取第一位
        except IndexError:
             continue
        except (KeyboardInterrupt,EOFError):
            yn = 'n'

        if yn in 'nN':
            print('\nBye-bye')
            break



if __name__ == '__main__':
    main()