C++中定义类的对象：用new和不用new有何区别

  举个简单的例子： class Point { private: int x; int y; public: void Set(int a,int b) { x=a; y=b; } void Print() { cout<<"("<<x<<","<<y<<")"<<endl; } }; void main() { Point p1; Point *p2=new Point(); p1.Set(1

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