之字形打印矩阵

 1 #include <iostream>
 2 
 3 using namespace std;
 4 
 5 template<class T>
 6 void ZiPrint(const T arr, const int x, const int y)
 7 {
 8     int Ax = 0, Ay = 0;//初始化A,B的坐标
 9     int Bx = 0, By = 0;
10     bool flag = true;//true为右上方方向遍历， false为左下角方向遍历
11 
12     while (Ax <= x-1 && Ay <= y-1)//A到右下角就遍历完毕
13     {
14         if(flag)//右上方方向遍历
15         {
16             int Tx = Bx, Ty = By;
17             while (Tx >= Ax || Ty <= Ay)
18             {
19                 cout << arr[Tx][Ty] << "  ";
20                 Tx -= 1;
21                 Ty += 1;
22             }
23             flag = false;
24         }
25         else//向左下角方向遍历
26         {
27             int Tx = Ax, Ty = Ay;
28             while (Tx <= Bx || Ty >= By)
29             {
30                 cout << arr[Tx][Ty] << "  ";
31                 Tx += 1;
32                 Ty -= 1;
33             }
34             flag = true;
35         }
36         //更新A,B
37         if (Ay < y - 1)
38             Ay += 1;
39         else
40             Ax += 1;
41 
42         if (Bx < x - 1)
43             Bx += 1;
44         else
45             By += 1;
46 
47     }
48     cout << endl;
49 
50 }
51 
52 void Test()
53 {
54     int aa[3][4] = { 1,2,3,4,5,6,7,8,9,10,11,12 };
55     ZiPrint(aa, 3, 4);
56 }