字符数组的sizeof和strlen

复习一下：

void test() {
	char* p = "ABCDE";

	printf("sizeof(p) = %lld\n", sizeof(p));               // 8, 指针大小
	printf("sizeof(\"ABCDE\") = %lld\n", sizeof("ABCDE")); // 6, 包括'\0'
	printf("strlen(p) = %d\n", strlen(p));                 // 5
	printf("strlen(\"ABCDE\") = %d\n", strlen("ABCDE"));   // 5

/****************************************************************************/
	char a[] = "ABCDE";

	printf("sizeof(a) = %lld\n", sizeof(a));  // 6, 包括'\0'
	printf("strlen(a) = %d\n", strlen(a));    // 5

	return 0;
}