用C语言如何输出回型矩阵

可以使用双重循环来输出回型矩阵，具体代码如下：

#include <stdio.h>

int main() {
    int n;
    printf("请输入矩阵的大小：");
    scanf("%d", &n);
    int matrix[n][n];
    int num = 1;
    int left = 0, right = n - 1, top = 0, bottom = n - 1;
    while (left <= right && top <= bottom) {
        for (int i = left; i <= right; i++) {
            matrix[top][i] = num++;
        }
        for (int i = top + 1; i <= bottom; i++) {
            matrix[i][right] = num++;
        }
        if (left < right && top < bottom) {
            for (int i = right - 1; i >= left; i--) {
                matrix[bottom][i] = num++;
            }
            for (int i = bottom - 1; i > top; i--) {
                matrix[i][left] = num++;
            }
        }
        left++;
        right--;
        top++;
        bottom--;
    }
    printf("回型矩阵如下：\n");
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            printf("%d\t", matrix[i][j]);
        }
        printf("\n");
    }
    return 0;
}