//4_4.cpp
#include?
#include?
using?namespace?std;
class?Point	//Point類聲明
{
public:
	Point（int?xx=0?int?yy=0）?
	{
		X=xx;Y=yy;
	//cout<<“Point構造函數被調用“<	}
	Point（Point?&p）;
	int?GetX（）?{return?X;}
	int?GetY（）?{return?Y;}
	//~Point（）	{cout<<“Point析構函數被調用“<private:
	int?XY;
};
Point::Point（Point?&p）	//拷貝構造函數的實現
{
	X=p.X;
	Y=p.Y;
	cout<<“Point拷貝構造函數被調用“<}
//類的組合
class?Line	//Line類的聲明
{
public:	//外部接口
	Line（int?x1int?y1int?x2int?y2）;
	Line?（Point?xp1?Point?xp2）;
	/*Line?（Point?xp1?int?x2int?y2）:p1（xp1）p2（x2y2）
	{
		cout<<“混合參數“<		double?x=double（p1.GetX（）-x2）;
		double?y=double（p1.GetY（）-y2）;
		len=sqrt（x*x+y*y）;
	}*/
	Line?（Line?&）;
	double?GetLen（）{return?len;}
//	~Line（）{cout<<“Line析構函數被調用“<private:	//私有數據成員
	Point?p1p2;	//Point類的對象p1p2
	double?len;	
};

//組合類的構造函數
Line::?Line（int?x1int?y1int?x2int?y2）
:p1（x1y1）p2（x2y2）
{
	cout<<“Line構造函數被調用int“<	double?x=double（x1-x2）;
	double?y=double（y1-y2）;
	len=sqrt（x*x+y*y）;	
}
Line::?Line?（Point?xp1?Point?xp2）
:p1（xp1）p2（xp2）
{
	cout<<“Line構造函數被調用point“<	double?x=double（p1.GetX（）-p2.GetX（））;
	double?y=double（p1.GetY（）-p2.GetY（））;
	len=sqrt（x*x+y*y）;
}

//組合類的拷貝構造函數
Line::?Line?（Line?&Seg）:?p1（Seg.p1）?p2（Seg.p2）
{
	cout<<“Line拷貝構造函數被調用“<	len=Seg.len;
}

//主函數
void?main（）
{
	Point?myp1（11）myp2（45）;	//建立Point類的對象
	Line?line（myp1myp2）;	//建立Line類的對象
	Line?line1（1145）;
	Line?line2（line）;	//利用拷貝構造函數建立一個新對象

	cout<<“The?length?of?the?line?is:“;
	cout<	cout<<“The?length?of?the?line1?is:“;
	cout<	cout<<“The?length?of?the?line2?is:“;
	cout<	/*Line?line3（myp145）;
	cout<<“The?length?of?the?line3?is:“;
	cout<}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1987??2012-04-04?11:41??例題源代碼\4_4.cpp

?????文件????????205??2010-03-16?22:45??例題源代碼\ch02\++i---i.cpp

?????文件????????183??2010-03-11?18:09??例題源代碼\ch02\++i.cpp

?????文件????????134??2003-12-28?20:52??例題源代碼\ch02\2_1.cpp

?????文件????????282??2010-03-23?22:06??例題源代碼\ch02\2_10.cpp

?????文件????????606??2003-12-31?12:50??例題源代碼\ch02\2_11.cpp

?????文件????????355??2003-12-28?21:16??例題源代碼\ch02\2_12.cpp

?????文件????????462??2003-12-31?12:51??例題源代碼\ch02\2_13.cpp

?????文件????????789??2003-12-31?12:51??例題源代碼\ch02\2_14.cpp

?????文件????????366??2010-03-11?14:47??例題源代碼\ch02\2_2.cpp

?????文件????????275??2003-12-28?20:54??例題源代碼\ch02\2_3.cpp

?????文件????????536??2003-12-28?20:57??例題源代碼\ch02\2_4.cpp

?????文件????????209??2003-12-28?21:00??例題源代碼\ch02\2_5.cpp

?????文件????????314??2003-12-28?21:01??例題源代碼\ch02\2_6.cpp

?????文件????????165??2003-12-28?21:03??例題源代碼\ch02\2_7.cpp

?????文件????????277??2003-12-28?21:05??例題源代碼\ch02\2_8.cpp

?????文件????????485??2003-12-28?21:07??例題源代碼\ch02\2_9.cpp

?????文件????????429??2010-03-15?15:27??例題源代碼\ch02\chap2?jiegou?li.cpp

?????文件????????212??2010-03-23?21:51??例題源代碼\ch02\for?do-while.cpp

?????文件????????317??2010-03-11?15:22??例題源代碼\ch02\test.cpp

?????文件????????379??2010-03-23?21:37??例題源代碼\ch02\while?&do?while.cpp

?????文件????????195??2010-03-16?22:38??例題源代碼\ch02\字符數據與整型數據.cpp

?????文件????????312??2010-03-30?15:06??例題源代碼\ch03\3_1.cpp

?????文件????????571??2003-12-28?22:42??例題源代碼\ch03\3_10.cpp

?????文件????????268??2003-12-28?22:50??例題源代碼\ch03\3_11.cpp

?????文件????????270??2003-12-28?22:50??例題源代碼\ch03\3_12.cpp

?????文件????????504??2003-12-28?22:51??例題源代碼\ch03\3_13.cpp

?????文件????????326??2003-12-28?22:51??例題源代碼\ch03\3_14.cpp

?????文件????????681??2003-12-31?12:49??例題源代碼\ch03\3_15.cpp

?????文件???????1030??2003-12-28?22:54??例題源代碼\ch03\3_16.cpp

............此處省略330個文件信息