猜数字游戏，从0到9十个字符中随机选取4个各不重复的字符供玩家猜，十次机会，猜错给予一定提示（位置对数字也对的有几个，数字对但位置不对的有几个）-A game named guess number.from 0-9 characters in 10 randomly selected four of the non-repetition of characters for players to guess, ten times the opportunity to guess must be g