C++引用与传参

# include <iostream>

using namespace std;

void Swap(int *pa, int *pb)

{

	int t = *pa;

	*pa = *pb;

	*pb = t;

	cout << "*pa = " << *pa << endl;

}

void Swap(int &a, int &b) {

	int tmp;

	tmp = a;

	a = b;

	b = tmp;

	cout << "tmp = " << tmp << endl;  

}

int main()

{

	int a = 3, b = 5;

	Swap(&a, &b);   /*执行第一个*/

	Swap(a, b);   /*执行第二个*/

	printf("a = %d""; b = %d\n", a, b);

	cout << "a = " << a << "; b = " << b << endl;

	return 0;

}

输出结果

巴特西

C++引用与传参

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