猜数字游戏:系统随机生成四位千位数字,数字不能相同,用户有15次尝试机会,中途可以退出(放弃)游戏,系统告知答案并退出。 规则:1,对用户的输入进行判断,非法字符(只能含有数字)警告,不计入次数。2,重复数字警告,不计数。3,对合法输入技术 使用技术:signal.signal() 信号 使用ctr + z 发送系统信号 exit()退出最近循环 set(去重)
1:os.walk() 遍历文件下的所有文件,目录继续遍历 2:os.sep 路径分割符,win / linux / 可以替代兼容
猜数字游戏
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