猜数字游戏

计算机随机产生一个无重复数字的四位数

若所猜的数位置与数字均正确,会显示一个A,若数字对位置不对,会显示一个B.-Number guessing game is a computer randomly generated four-digit number without repetition by the guess that if the number of locations and figures are correct, will show an A, if the number of position wrong and they' ll show a B.