C/C++º¯Êý²ÎÊý,´«ÖµÓò´«Ö·µÄÇø±ð!!!
	
    
    
	/*
 * File:   main.cpp
 * Author: Vicky
 *
 * Created on 2010Äê5ÔÂ8ÈÕ, ÏÂÎç2:47
 */
#include <iostream>
using namespace std;
class A{
public:
    A(){
        cout << "Ö´Ðй¹Ô캯Êý´´½¨Ò»¸ö¶ÔÏó" << endl;
    }
    A(A&){
        cout << "Ö´Ðп½±´º¯Êý¿½±´Ò»¸ö¶ÔÏó" << endl;
    }
    ~A(){
        cout << "Ö´ÐÐÎö¹¹º¯Êýɾ³ýÒ»¸ö¶ÔÏó" << endl;
    }
};
void func(A a){
    cout << "µ÷ÓÃÒ»¸ö´«Öµº¯Êý" << endl;
}
void func2(A &a){
    cout << "µ÷ÓÃÒ»¸ö´«Ö·º¯Êý" << endl;
}
A getA(A a){
    return a;
}
A getA2(A &a){
    return a;
}
/**
 * ͬgetA4
 */
A* getA3(A &a){
    return &a;
}
/**
 * ͬgetA3
 */
A* getA4(A *a){
    return a;
}
/*
 * °´Öµ´«µÝµÄȱµã...µ±´´½¨Ò»¸öеĶÔÏóÖ®ºó,Èç¹û°´Öµ´«µÝ
 * ½«¸´Öƹ¹Ô캯Êý´´½¨¶ÔÏóµÄ¸±±¾,¸±±¾ÔÚʹÓÃÍê³ÉÖ®ºó,ÓÖ»áÖ´ÐÐÎö¹¹º¯Êýɾ³ý¸Ã¸±±¾!
 */
int main(int argc, char** argv) {
    A a;
    func(a);
    func(a);
    cout << "-------" << endl;
    func2(a);
    func2(a);
    cout << "-------" << endl;
    getA(a); // ½«¿½±´2¸ö¶ÔÏóºÍɾ³ý2¸ö¶ÔÏó,1¸ö¶ÔÏóÊÇ×÷Ϊ²ÎÊý´«µÝµÄ,ÁíÍâÒ»¸ö¶ÔÏóÊÇ×÷Ϊֵ·µ»ØµÄ!
    cout << "-------" << endl;
    
    getA2(a); // ½«¿½±´1¸ö¶ÔÏóºÍɾ³ý1¸ö¶ÔÏó,¸Ã¶ÔÏóÊÇ×÷Ϊֵ·µ»ØµÄ!
    cout << "-------" << endl;
    getA3(a); // ½«²»¿½±´aµÄ¶ÔÏó×öΪ²ÎÊý,Ò²²»»á¿½±´aµÄ¶ÔÏó×÷Ϊ·µ»ØÖµ(°üÀ¨É¾³ý)!
    getA4(&a);
    return (EXIT_SUCCESS);
}
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