程序会随机产生一个四位数，然后玩家有10次机会去猜这个数，每猜一次程序会显示出玩家在这次猜数中有几个是对的。-Program randomly generates a four-digit, then the player has 10 chances to guess this number, each time the program will show a guess at this guess the number of players, there are several right.