摘要： package CHobery; /** * 给定7个数字2,3,5,6,7,8,9的全排列共7！个 * 7位数中有多少个平方数。试着求出这些7位平方数 * @author Administrator * */ public class Main1 { public static long b = 0,c = 0,d = 0,y = 0,g = 0; public stati... 阅读全文