Question

定义一个类vector,用运算符重载的方法实现向量的相加减及其输出

（为了方便编程，设向量均为三个元素且均为整数）。

Answer 1

class CVector{private:int a,b,c;public:CVector(int A,int B,int C):a(A),b(B),c(C){};~CVecotr(){};friend CVector operator+(const CVector& left,const CVector& right);friend CVector operator-(const CVector& left,const CVecor& right);friend ostream& operator<<(ostream& out,const CVector& right);};CVector operator+(const CVector& left,const CVector& right){return CVector(left.a+right.a,left.b+right.b,left.c+right.c);}CVector operator-(const CVector& left,const CVector& right){return CVector(left.a-right.a,left.b-right.b,left.c-right.c);}ostream& operator<<(ostream& out,const CVector& right){return out<<right.a<<right.b<<right.c<<endl;}基本模型大概就这样了