1 #include "stdafx.h"
2 #include<stdio.h>
3 #include<iostream>
4 using namespace std;
5
6 int main()
7 {
8 int a,b,*p1,*p2,*p3;
9 a=100;
10 b=200;
11
12 p1=&a;
13 p2=&b;
14
15 //int c=a+b;
16 printf("p1地址：%p\n",p1);
17 printf("p2的地址：%p\n",p2);
18 printf("a地址：%p\n",&a);
19 printf("b地址：%p\n",&b);
20 printf("a=%d\n",a);
21 printf("b=%d\n",b);
22 //printf("*p1=%d\n",*p1);
23 //printf("*p2=%d\n",*p2);
24 if(a<b)
25 {
26 p3=p1;
27 p1=p2;
28 p2=p3;
29 };
30 //p1,p2的地址改变， a,b,的数值不变
31 printf("*p1=%d\n",*p1);
32 printf("*p2=%d\n",*p2);
33 printf("p1地址：%p\n",p1);
34 printf("p2的地址：%p\n",p2);
35 printf("a=%d\n",a);
36 printf("b=%d\n",b);
37 system("pause");
38 return 0;
39 }
