(1) 重载输出运算符 <<
ostream& operator<<(ostream& os,Student& s) //其中Student是一个类类型的数据结构
{
os<<s.GetNO()<<" "<<s.GetName()<<" "<<s.GetUniversity()<<" "<<s.GetTotal();
return os;
}
(2)重载相减运算符 -
Complex operator -(Complex &c1,Complex &c2)
{
Complex tmp;
tmp.a=c1.a-c2.a;
tmp.b=c1.b-c2.b;
return tmp;
}