起因

办公室里同事都是女的，所以换桶装水的健身活动，只能由我一个人干了。换水回来，猛地一想，这活如果编码该怎么搞呀。

环境

换水的地方在一个会议室，如果有会议还不能换

目的

1.桶有水，不用换
2.桶空了，还有两种情况：
（1）会议室正在开会，不能换水
（2）会议室没人，可以换水

Python编码

buck_list = ['full','empty']
room_list = ['meeting','no meeting']
def buck_acount():
    buck = input('The buck is:')
    buck_full = buck == buck_list[0]
    buck_empty =  buck == buck_list[-1]
    if buck_full:
        print('You do not need to change water! You are free to do other things!')
    elif buck_empty:
        room = input('The room is:')
        room_meeting = room == room_list[0]
        room_nomeeting = room ==room_list[-1]
        if room_meeting:
           print('You cannot to change water!')
        elif room_nomeeting:
            print('You can change water!')
    else:
        print('Please input the right words, full or empty')
        buck_acount()
buck_acount()

经验总结

Python的编码缩进很重要，这是程序识别代码块的重要依据