摘要： 1 package firs; 2 3 import java.util.Scanner; 4 5 public class Digui { 6 private static int a; 7 private static int b=0; 8 public static void ok(String str,int i) 9 { 10 if(i==a/2||i==a/2+1) 11 { 12 S 阅读全文