动态申请二维数组

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原文：http://blog.163.com/lj_2005/blog/static/45865422010513102210568/

//动态定义一维数组、二维数组、三维数组
#include<iostream>
#include<ctime>
using namespace std ;
int main()
{
int hight , row , col ;
register int i , j , k ;
srand((unsigned)time(NULL)) ;

cout<<"输入一维数组的行"<<endl;
cin>>row ;
//动态定义一维数组
int *p1 ;
    p1 = new int [row] ;
//输入一维数组的值
for( i = 0 ; i < row ; i ++ )
   p1[i] = rand () % 10 ;
//输出一维数组
for( i = 0 ; i < row ; i ++ )
   cout<<p1[i] <<' ' ;
cout<<endl;
//释放一维数组
delete [] p1 ;

cout<<"输入二维数组的行，列 :";
cin>>row >>col ;
//动态定义二维数组
int **p2 ;
p2 = new int*[row] ;
for( i = 0 ; i < row ; i ++ )
   p2[i] = new int[col] ;
//输入二维数组的值
for( i = 0 ; i < row ; i ++ )
   for( j = 0 ; j < col ; j ++ )
    p2[i][j] = rand() % 10 ;
//输出二维数组
   cout<<"输出二位数组："<<endl;
for( i = 0 ; i < row ; i ++ )
{
   for( j = 0 ;j < col ; j ++ )
    cout<<p2[i][j]<<' ' ;
   cout<<endl;
}
    //释放二维数组
for( i = 0 ; i < row ; i ++ )
    delete []p2[i] ;
delete []p2 ;

cout<<"输入三维数组高，行，列 : ";
cin>>hight>>row >> col ;
//动态定义三维数组：
int *** p3 ;
p3 = new int**[hight ] ;
for( i = 0 ; i < hight ; i ++ )
     p3[i] = new int*[row] ;
for( i = 0 ; i < hight ; i ++ )
   for( j = 0 ; j < row ; j ++ )
    p3[i][j] = new int[col] ;
    //输入三维数组值：
   for(i = 0 ; i < hight ; i ++ )
    for(j = 0 ; j < row ; j ++ )
     for( k = 0 ; k < col ; k ++)
      p3[i][j][k] = rand()%10 ;
//输出三维数组：
     cout<<"输出三维数组"<<endl;
   for(i = 0 ; i < hight ; i ++ )
   {
    for( j = 0 ; j < row ; j ++ )
    {
     for( k = 0 ; k < col ; k ++ )
      cout<<p3[i][j][k]<<' ' ;
     cout<<endl;
    }
    cout<<endl;
   }
     //释放三维数组
   for( i = 0 ; i < hight ; i ++ )
    for( j = 0 ; j < row ; j ++ )
     delete []p3[i][j] ;
   for( i = 0 ; i < hight ; i ++ )
    delete []p3[i] ;
   delete []p3 ;
return 0 ;
}

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