#include <stdio.h>

#include <string.h>

int main()

{

	char a[10] = "\0";

	char *pa = (char *)&a;

	char (*paa)[10] = &a;

	printf("-----a[10]----\n");

	printf("a size:%d, pa size;%d, *pa size:%d, *paa size:%d\n", sizeof(a), sizeof(pa), sizeof(*pa), sizeof(*paa));

	return 0;

}

#./aaa

-----a[10]----

a size:10, pa size;8, *pa size:1, *paa size:10

当字符数组的首地址，强制转化成char *指针后： sizeof(*ptr) 不为array的大小；