猜數字遊戲 v2.0

【猜數字】遊戲規則：
由電腦亂數取出4位不同的數字，玩家就可以開始猜。每猜一個數，電腦就會根據玩家猜的這個數字給出幾A幾B，其中A前面的數字表示位置正確的數的個數，而B前的數字表示數字正確而位置不對的數的個數。
如正確答案為5234，而猜的人猜5346，則是1A2B，其中有一個5的位置對了，記為1A，而3和4這兩個數字對了，而位置沒對，因此記為2B，合起來就是1A2B。
接著玩家再根據電腦回答的幾A幾B繼續猜，直到猜中(4A)為止。 [Guess] rules of the game:
Remove from computer nonce four different numbers, players can begin to guess. Each guess a number, the computer will give a few A few B according to the player guess this figure, where A represents the position in front of the correct number of digital numbers, and the number B represents a number in front of the number of correct and incorrect position of a number.
Such as the correct answer is 5234, and guess who guess 5346, it is 1A2B, which has a 5 on the location, denoted 1A, while 3 and 4 of these two figures, while the position is not right, and therefore referred to as 2B together is 1A2B.
Then the players to continue to guess according to the computer to answer a few A few B, until guessed (4A) so far.