1 package test;
 2 
 3 import java.util.Scanner;
 4 
 5 public class test {
 6 public static void main(String[] args) {
 7     Scanner scanner=new Scanner(System.in);
 8     System.out.println("请输入个数：");
 9     int num=scanner.nextInt();
10     int[][] l=new int[num][num];
11     int co=0;
12     int q;
13     if(num%2==0) {
14         q=num/2;
15     }else {
16         q=(num-1)/2;
17     }
18     int f=1;
19     for(int j=0;j<q;j++) {
20         int i1=0,i2=0,i3=0,i4=0;
21         for(int i=0;i<num-1-j*2;i++) {
22             i1=l[j][i+j]=i+f;
23         }
24         
25         for(int i=0;i<num-1-j*2;i++) {
26             i2=l[i+j][num-1-j]=i1+i+1;
27         }
28         for(int i=0;i<num-1-j*2;i++) {
29             i3=l[num-1-j][num-1-j-i]=i2+i+1;
30         }
31         for(int i=0;i<num-1-j*2;i++) {
32             i4=l[num-i-1-j][j]=i3+i+1;
33         }
34         f=i4+1;
35         System.out.println("F为"+f);
36     }
37     for(int j=0;j<num;j++) {
38         for(int i=0;i<num;i++) {
39             System.out.print(l[j][i]+"\t");
40         }
41         System.out.println();
42     }
43 }
44 }