般两个人玩，一方出数字，一方猜。出数字的人要想好一个没有重复数字的4位数，不能让猜得人知道。猜的人就可以开始猜。每猜一个数字，出数者就要根据这个数字给出几A几B，其中A前面的数字表示位置正确的数的个数，而B前的数字表示数字正确而位置不对的数的个数。-Two can play, one number, one guess. A number of people to be good without a repeat number 4 digits, can t let the person know. People can begin to guess. Each guess A number, which is based on the number given A few A few B, including the number of figures show that the location right in front of A number, and B before digital said the number of right and wrong number.