int main(){

 	//单值指针(指向单个值得指针，类同普通变量)

	int *px = new int;

 	*px = 100;

 	printf("%d",*px);

 	delete px;

	//多值指针(指向多个元素的指针，类同普通数组变量)

	int *p = new int[2];

	p[0] = 2;

	p[1] = 99;

	printf("%d %d\n",p[0],p[1]);//2 99

	delete [] p;

	//二维指针(属于多维指针)

	int **pp = new int * [3];//m:宽  （即 列数）

	for(int i = 0;i < 3;i++){

		pp[i] = new int [2];//列长(即 行数)

	}

	for(int i = 0;i < 3;i++){

		delete [] pp[i];

	}

	//三维指针(属于多维指针)

	int ***ppp = new int ** [3];//假定数组第一维为m， 第二维为n， 第三维为h

	for(int i = 0;i < 3;i++){

		ppp[i] = new int * [2];

		for(int j = 0; j < 2; j++){

			ppp[i][j] = new int [4];

		}

	}

	for( int i=0; i < 3; i++ ){

		for( int j=0; j < 2; j++ ){

	        delete ppp[i][j];

		}

		delete ppp[i];

	}

	//数组指针(又称为 行指针；本质：指针)

	int array[2][3] = {1,2,3,4,5,6};

	int (*lineP)[3] = array;

	delete [] lineP[0];

	delete [] lineP[1];

	delete [] lineP[2];

	//指针数组(指向多个指针)

	int m = 100;

	int *pA = &m;

	int *pB = &m;

	int *pC = &m;

	int *pa[2];

	pa[0] = pA;

	pa[1] = pB;

	printf("%d %d",*(pa[0]),*(pa[1]));//100 100

 }