用c++编二维数组array类的设计并重载下标运算符、函数调用运算符

#include <iostream> using namespace std; class Array { private: int **data; int rows, cols; public: Array(int r, int c) { rows = r; cols = c; data = new int*[rows]; for (int i = 0; i < rows; i++) { data[i] = new int[cols]; } } ~Array() { for (int i = 0; i < rows; i++) { delete[] data[i]; } delete[] data; } int* operator[](int i) { return data[i]; } int operator()(int i, int j) { return data[i][j]; } }; int main() { Array a(3, 4); for (int i = 0; i < 3; i++) { for (int j = 0; j < 4; j++) { a[i][j] = i * 4 + j; } } for (int i = 0; i < 3; i++) { for (int j = 0; j < 4; j++) { cout << a(i, j) << " "; } cout << endl; } return 0; }