C++ 类对象和 指针的区别

C++ 类对象和 指针的区别

C++ 类对象和 指针的区别

转自：http://blog.csdn.net/ym19860303/article/details/8557746

指针的情况

class Test{
public:
    int a;
    Test(){
        a = 1;
    }
};

int main()
{
    Test* t1 = new Test();
    t1->a = 10;
    
    Test* t2 = new Test();
    t2->a = 5;
    
    cout << "&t1:" << t1 << " a = " << t1->a << endl;
    cout << "&t2:" << t2 <<  " a = " << t2->a <<endl;
    
    cout << "------------------------------" << endl;
    t2 = t1;
    cout << "&t1:" << t1 << " a = " << t1->a << endl;
    cout << "&t2:" << t2 <<  " a = " << t2->a <<endl;
    
    cout << "------------------------------" << endl;
    
    t1->a = 111;
    t2->a = 222;
    cout << "&t1:" << t1 << " a = " << t1->a << endl;
    cout << "&t2:" << t2 <<  " a = " << t2->a <<endl;
    
    return 0;
}

View Code