c++如何创建二维动态数组与内存释放问题
小编给大家分享一下c++如何创建二维动态数组与内存释放问题,希望大家阅读完这篇文章之后都有所收获,下面让我们一起去探讨吧!
如下:
#include <iostream> #include <windows.h> using namespace std; int main() { cout << "create dynamic two-dimension array..." << endl; int sizeX = 5; int sizeY = 8; // 申请 double** array = new double*[sizeX]; for (int i = 0; i < sizeX; i++) { array[i] = new double[sizeY]; } for (int i = 0; i < sizeX; i++) { for (int j = 0; j < sizeY; j++) { array[i][j] = i + j; } } for (int i = 0; i < sizeX; i++) { for (int j = 0; j < sizeY; j++) { cout << array[i][j]; } cout << endl; } // 释放 for (int i = 0; i < sizeX; i++) { delete[] array[i]; } delete[] array; system("pause"); return 0; }
如上,结果如下:
create dynamic two-dimension array...
01234567
12345678
23456789
345678910
4567891011
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