#include <stdio.h>
int main(void) {
int b = 2;
int* pointer = &b;
printf("變數 b 的值：%d\n", b); //2
printf("變數 b 的地址：%p\n", &b); //0x7fff551b49c8
printf("pointer 的值：%p\n", pointer); //0x7fff551b49c8
printf("\n"); //換行
*pointer = 100;
printf("*pointer 的值：%d\n", *pointer); //100
printf("變數 b 的值：%d\n", b); //100
printf("變數 pointer 的地址：%p\n", &pointer); //0x7fff55149c0
return 0;
}