猜数字的游戏，系统随机给4个数字，然后你选择4个数字看能不能与系统给出的相同，另外你猜数字猜错了，系统会给出相应的提示-Guessing game, the system randomly to four digits, then four digits of your choice to see the same system can give, in addition guessing you guess wrong, the system will give corresponding prompt