猜四位整数游戏。由程序产生一个四位随机整数，其中没有重复的数字，由用户猜出这个四位整数。根据用户每次输入的四位整数，判断出猜出的相同数字的个数和相同位置的个数，直到猜对。-Guessing game four integer. By the procedures of a random integer 4, which did not repeat the figures, by the user to guess the four integers. Based on user input for each of the four integers, the same judge to guess the number of figures and the same number of positions, until the guess right.