complex.h

上传几个数据结构源代码

#include"iostream.h"

template<class T>
class Complex
{
	private:
     T x,y;
	public:
		Complex(T a,T b)   
		{
			x=a,y=b;
		}
		Complex(){} //default constructor
		Complex(Complex& a) //copy construct
		{
			x=a.x,y=a.y;
		}
		~Complex()
		{
			//nothing shoud be done
		}
		Complex & operator=(const Complex &op)
		{
			x=op.x,y=op.y;
			return *this;
		}
		friend const Complex operator+(const Complex &opa,const Complex &opb)
		{
	     T a=opa.x+opb.x;
		 T b=opa.y+opb.y;
		 Complex c(a,b);
		 return c;
		}
		friend const Complex operator-(const Complex &opa,const Complex &opb)
		{
	     T a=opa.x-opb.x;
		 T b=opa.y-opb.y;
		 Complex c(a,b);
		 return c;
		}
		friend const Complex operator*(const Complex &opa,const Complex &opb)
		{
	     T a=opa.x*opb.x-opa.y*opb.y;
		 T b=opa.x*opb.y+opa.y*opb.x;
		 Complex c(a,b);
		 return c;
		}
		friend const Complex operator/(const Complex &opa,const Complex &opb)
		{
			if(opb.x==0&&opb.y==0)
			{
			cout<<"除法错误"<<"\n";
			Complex f;
			return f;
			}
	     T a=(opa.x*opb.x+opa.y*opb.y)/(opb.x*opb.x+opb.y*opb.y);
		 T b=(opa.y*opb.x-opa.x*opb.y)/(opb.x*opb.x+opb.y*opb.y);
		 Complex c(a,b);
		 return c;
		}
		friend ostream& operator<<(ostream& out,Complex& op)
		{
			out<<op.x<<(op.y>0?"+":"")<<op.y<<"i\t";
			return out;
		}
		friend istream& operator>>(istream& in,Complex& op)
		{
			in>>op.x;
			in>>op.y;
			return in;
		}
}
;