实例代码：
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#include <stdio.h>
void matrix (int m, int n, int t)
{
int arr[m][n];
int i, j, k;
for (i = 0; i < m; i++){
for (j = 0; j < n; j++){
scanf("%d", &arr[i][j]);
}
}
if (t == 0){//左右翻转
for (i = 0; i < m; i++){
for (j = n-1; j >= 0; j--){
if ( j == 0 ) {
printf("%d", arr[i][j]);
}
else {
printf("%d ", arr[i][j]);
}
}
printf("\n");
}
}
else if (t == 1){//上下翻转
for (i = m-1; i >= 0; i--){
for (j = 0; j < n; j++){
if ( j == n - 1 ) {
printf("%d", arr[i][j]);
}
else {
printf("%d ", arr[i][j]);
}
}
printf("\n");
}
}
}
int main()
{
int m, n, t;
scanf("%d %d %d", &m, &n, &t);
matrix (m, n, t);
return 0;
}
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动态分配内存
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void matrix (int m, int n, int t)
{
int i, j;
int **arr=(int**)malloc(m*sizeof(int*));
for(i = 0; i < m; i++)
{
arr[i] = (int*)malloc(n * sizeof(int));
for(j = 0; j < n;j++)
{
scanf("%d", &arr[i][j]);
}
}
/*
int **arr = new int*[m];
for(i=0;i<m;i++)
{
arr[i] = new int[n];
for(j=0;j<n;j++)
{
scanf("%d", &arr[i][j]);
}
}
*/
if (t == 0){//左右翻转
for (i = 0; i < m; i++){
for (j = n-1; j >= 0; j--){
if ( j == 0 ) {
printf("%d", arr[i][j]);
}
else {
printf("%d ", arr[i][j]);
}
}
printf("\n");
}
}
else if (t == 1){//上下翻转
for (i = m-1; i >= 0; i--){
for (j = 0; j < n; j++){
if ( j == n - 1 ) {
printf("%d", arr[i][j]);
}
else {
printf("%d ", arr[i][j]);
}
}
printf("\n");
}
}
}
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感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！
原文链接：http://blog.csdn.net/mrz_swworld/article/details/40456517