值传递，指针传递,引用传递 的区别

实际上是一个对象

#include "stdafx.h"#include<iostream>using namespace std;void ValueTransfer(int a, int b){	int temp = a;	a = b;	b = temp;	cout << a << b << endl;	cout << "形参a与b的地址为/n";	cout << &a << ' ' << &b << endl;}void PointerTransfer(int *a, int *b){	int temp = *a;	*a = *b;	*b = temp;	cout << *a << *b << endl;	cout << "形参a与b的地址为/n";	cout << &a << ' ' << &b << endl;}void QuoteTransfer(int &a, int&b){	int temp = a;	a = b;	b = temp;	cout << a << b << endl;	cout << "形参a与b的地址为/n";	cout << &a << ' ' << &b << endl;}int main(){		int x = 3;	int y = 4;	//value transfer	cout << "值传递/n";	ValueTransfer(x, y);	cout << "实参x与y地址为/n";	cout << &x << ' ' << &y << endl;	cout << "传递后实参的值为：/n";	cout << x << y << endl << endl;		//PointerTransfer	cout << "指针传递/n";	PointerTransfer(&x, &y);	cout << "实参x与y地址为/n";	cout << &x << ' ' << &y << endl;	cout << "传递后实参的值为：/n";	cout << x << y << endl << endl;	//QuoteTransfer	cout << "引用传递/n";	QuoteTransfer(x, y);	cout << "实参x与y地址为/n";	cout << &x << ' ' << &y << endl;	cout << "传递后实参的值为：/n";	cout << x << y << endl << endl;	return 0;}结果：