动态生成二维数组

#include <iostream>using namespace std;const int g_height = 10;const int g_width = 10;int main(int argc, char** argv){int **ptr;ptr = new int*[g_width];for (int i = 0; i < g_width; ++i){ptr[i] = new int[g_height];for ( int j = 0; j < g_height; ++j ){ptr[i][j] = i*j;}}for (int i = 0; i < g_width; ++i ){for ( int j = 0; j < g_height; ++j ){cout << ptr[i][j] << "/t";}cout << endl;}for (int i = 0; i < g_width; ++i){delete[] ptr[i];ptr[i] = NULL;}delete ptr;ptr = NULL;}