#include<iostream>
using namespace std;
int main(){
	int * ptr_a, * ptr_b,temp;
	ptr_a = new int;
	ptr_b = new int;
	cout<<"请输入*ptr_a的值:";
        cin>>*ptr_a;
	cout<<"请输入*ptr_b的值:";
	cin>>*ptr_b;
        temp=*ptr_a;
        *ptr_a=*ptr_b;
	*ptr_b=temp;
	cout<<*ptr_a<<"  "<<*ptr_b<<endl;
	delete ptr_a,ptr_b;
	return 0;
}