目錄

1.VS安裝VLD記憶體洩露檢測工具

2.C語言下實現二維陣列的動態開闢

3.C++下實現二維陣列的動態開闢

4.C++下實現高維陣列的動態開闢

1.VS安裝記憶體洩漏檢測工具VLD

參考這篇部落格即可：https://blog.csdn.net/GZrhaunt/article/details/56839765

2.C語言下實現二維陣列的動態開闢

#include<iostream>
#include<assert.h>
#include<vld.h>

using namespace std;

#define  Type int

#define  ROW 3
#define  COL 4

Type** _Malloc(int row, int col)
{
	Type **p = (Type**)malloc(sizeof(Type*)*row);
	for (int i = 0; i < row; i++)
		p[i] = (int*)malloc(sizeof(int)*COL);

	return p;
}

void _Assign(Type **p, int row, int col)
{
	for (int i = 0; i < row; i++)
	{
		for (int j = 0; j < col; j++)
		{
			p[i][j] = i + j;
		}
	}
}

void _Print(Type **p, int row, int col)
{
	for (int i = 0; i < row; i++)
	{
		for (int j = 0; j < col; j++)
		{
			printf("%d", p[i][j]);
			printf(" ");
		}
		printf("\n");
	}
}

void _free(Type **p, int row)
{
	for (int i = 0; i < row; i++)
		free(p[i]);
	free(p);
}

void main()
{
	Type **p = _Malloc(ROW,COL);
	_Assign(p, ROW, COL);
	_Print(p, ROW, COL);
	_free(p, ROW);
}
 

3.C++下實現二維陣列的動態開闢

方法1：

#include<iostream>
#include<assert.h>
#include<vld.h>

using namespace std;

#define  Type int

#define  ROW 3
#define  COL 4

Type** _New(int row, int col)
{
	Type **p = new Type*[row];
	for (int i = 0; i < row; i++)
		p[i] = (int*)malloc(sizeof(int)*COL);

	return p;
}

void _Assign(Type **p, int row, int col)
{
	for (int i = 0; i < row; i++)
	{
		for (int j = 0; j < col; j++)
		{
			p[i][j] = i + j;
		}
	}
}

void _Print(Type **p, int row, int col)
{
	for (int i = 0; i < row; i++)
	{
		for (int j = 0; j < col; j++)
		{
			cout<<p[i][j]<<" ";
			
		}
		cout << endl;
	}
}

void _Delete(Type **p, int row)
{
	for (int i = 0; i < row; i++)
		delete []p[i] ;
	delete[]p;
}

void main()
{
	Type **p = _New(ROW, COL);
	_Assign(p, ROW, COL);
	_Print(p, ROW, COL);
	_Delete(p, ROW);
}
 

方法二：

#include<iostream>
#include<assert.h>
#include<vld.h>

using namespace std;

#define  Type int

#define  ROW 3
#define  COL 4
typedef Type(*Ar)[COL];

Ar _New()
{
	Ar p = new Type[ROW][COL];
	return p;
}

void _Assign(Ar p)
{
	for (int i = 0; i < ROW; i++)
	{
		for (int j = 0; j < COL; j++)
		{
			p[i][j] = i + j;
		}
	}
}

void _Print(Ar p)
{
	for (int i = 0; i < ROW; i++)
	{
		for (int j = 0; j < COL; j++)
		{
			cout<<p[i][j]<<" " ;
		}
		cout << endl;
	}
}

void _Delete(Ar p)
{
	delete []p;
}

int main()
{
	Ar p = _New();
	_Assign(p);
	_Print(p);
	_Delete(p);


	return 0;
}
 

4.C++下實現高維陣列的動態開闢

#include<iostream>
#include<assert.h>
#include<vld.h>

using namespace std;

#define  Type int

#define  ROW 3
#define  COL 4
#define Z 3
typedef Type(*Ar)[ROW][COL];

Ar _New()
{
	Ar p=new Type[Z][ROW][COL];
	return p;
}

void _Assign(Ar p)
{
	for (int i = 0; i < Z; i++)
	{
		for (int j = 0; j < ROW; j++)
		{
			for (int k = 0; k < COL; k++)
			{
				p[i][j][k] = i + j + k;
			}
		}
	}
}

void _Print(Ar p)
{
	for (int i = 0; i < Z; i++)
	{
		for (int j = 0; j < ROW; j++)
		{
			for (int k = 0; k < COL; k++)
			{
				cout<<p[i][j][k]<<" ";
			}
		}
		cout << endl;
	}
}

void _Delete(Ar p)
{
	delete []p;
}

void main()
{
	Ar p = _New();
	_Assign(p);
	_Print(p);
	_Delete(p);
}