C语言二维数组几种常用的表示方法

#include<iostream>using namespace std;int main(){  int a[3][3] = {{0,1,2},{3,4,5},{6,7,8}};  int b[9] = {0,1,2,3,4,5,6,7,8};  int *c[3];  int **p;  cout<<"普通二维数组表示"<<endl;  for(int i = 0;i<3;++i)  {    for(int j = 0;j<3;++j)     {      cout<<a[i][j]<<"("<<&a[i][j]<<")"<<" ";  //括号里是对应元素的地址      //cout<<*(*(a+i)+j)<<" ";    }    cout<<endl;  }  cout<<"普通一维数组表示"<<endl;  for(int i = 0;i<3;++i)  {    for(int j = 0;j<3;++j)    {      cout<<b[i*3+j]<<"("<<&b[i*3+j]<<")"<<" ";    }    cout<<endl;  }  cout<<"指针数组表示:"<<endl;  for(int i = 0;i<3;++i)  {    c[i] = *(a+i);   //c[i]指向a数组的第i行首地址    for(int j = 0;j<3;++j)    {      cout<<c[i][j]<<"("<<&c[i][j]<<")"<<" ";    }    cout<<endl;  }  cout<<"指针变量表示"<<endl;  p = c;   //p为指向指针的指针，将指针数组c赋给指针变量p  for(int i = 0;i<3;++i)  {    for(int j = 0;j<3;++j)    {      cout<<p[i][j]<<"("<<&p[i][j]<<")"<<" ";    }    cout<<endl;  } return 0;}