eg4.cpp

C++课程更学习...对于初学者很有好出

// eg4.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <stdio.h>

void fun(int rA)
{
	rA = rA + 100;
}

int main(int argc, char* argv[])
{
	int nA = 3;

	int& rA = nA;
	rA = 100;
	printf("rA=%d, nA=%d\n", rA, nA);

	fun(nA); // fun(rA);
	printf("rA=%d, nA=%d\n", rA, nA);

	return 0;
}