指针和指针数组

#include<stdio.h>

typedef struct STU{
	char str[256];
}stu;

stu Arr[10];
stu *ptr = Arr;
stu *arr[10];


int main()
{
	printf("ptr = %ld, arr = %ld\n", sizeof(ptr), sizeof(arr));	// 8    80
	printf("ptr = %ld, arr = %ld\n", sizeof(ptr[1]), sizeof(arr[1]));	//256   8
	return 0;
}