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[讨论]c++向量类运算 帮忙改正,谢谢
#include<iostream.h>class Vector//向量{private: float x,y; public: friend float Vector f(Vector &a,Vector &b); ~Vector(){} Vector(float x1=0,float y1=0) {x=x1;y=y1;}};float f( Vector &v1,Vector &v2){ Vector v3; v3.x=v1.x+v2.x; v3.y=v1.y+v2.y; return &v3; }void main() { Vector Vector1(3.4,5),Vector2(4,5.0); cout<<"两个向量相加为:"<<endl; cout<<f(Vector1,Vector2)<<endl; }