delphitree.txt

这是一个用DELPHI写的树控制的一个源码

<tr><TD background=http://istudy.com.ru/images/line.jpg height=1 colspan=><IMG height=1 src="images/splash.gif" width=1></TD></tr>
</TABLE></td></tr></table>
<br>
<TABLE align="center">
<TR>
	<TD><script language=JavaScript>showbanner(1,1,2);</script></TD>
</TR>
</TABLE>
	</TD><TD width="1" id="maintable"><img src="http://istudy.com.ru/template/istudy/images/spacer.gif" width="1"></TD>
	<TD valign="top" bgcolor="#EFEFEF">
	<TABLE width="100%" border="0" align="center" cellpadding="9" cellspacing="0" id="deep">
	<TR>
		<TD background="http://istudy.com.ru/template/istudy/images/ex_bg.jpg"><br>
<br><span class="title">
<center>自己编写树(Tree)的封装类
</center></span>
<p align="center">发表时间:<span class="date">2005-08-27 02:04:48</span> 作者:  来源:<span class="comefrom"></span> 阅读次数:<span class="date"><script src=http://istudy.com.ru/count.php?aid=20542&type=></script></span></p>
<table id="sectable" cellspacing="1" cellpadding="0" width="100%" border="0">
<tbody>
<tr>
<td>
<table id="ftable" cellspacing="0" cellpadding="4" width="100%" border="0">
<tbody>
<tr>
<td>　　在本站发表的文章与作品版权归作者共有，如需转载，请注明出自本站及作者姓名。本站所提供的设计作品，如需使用，请与原作者联系，著作版权归原作者所有。 
</td></tr></tbody></table></td></tr></tbody></table>
<br> 
<br><span class="content"><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在</SPAN><SPAN lang=EN-US>VCL</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中包含有一个</SPAN><SPAN lang=EN-US>TList</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">类，几乎可以实现</SPAN><SPAN lang=EN-US>&lt;</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">链表</SPAN><SPAN lang=EN-US>&gt;</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">所有功能，</SPAN><SPAN lang=EN-US>Delphi</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的工程师真是伟大。但是在实际应用中需要</SPAN><SPAN lang=EN-US>TTree</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">类，来实现</SPAN><SPAN lang=EN-US>&lt;</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">树</SPAN><SPAN lang=EN-US>&gt;</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的功能，我写了两个类</SPAN><SPAN lang=EN-US>TyuTree</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</SPAN><SPAN lang=EN-US>TYuNode</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。可以方便实现，树创建，结点增删、移动功能。请大家指教。</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=2>代码实例：</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN lang=EN-US><FONT color=#000080 size=2>Procedure Test();</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN lang=EN-US><FONT color=#000080 size=2>Var</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><FONT size=2><FONT color=#000080><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">　</SPAN><SPAN lang=EN-US>YuTree: TyuTree;</SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080><SPAN style="mso-spacerun: yes">&nbsp; </SPAN>Node: TYuNode;</FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype><v:shape id=_x0000_s1026 style="MARGIN-TOP: 7.8pt; Z-INDEX: 1; LEFT: 0px; MARGIN-LEFT: 315pt; WIDTH: 108pt; POSITION: absolute; HEIGHT: 119.25pt; TEXT-ALIGN: left; mso-position-horizontal: absolute; mso-position-horizontal-relative: text; mso-position-vertical: absolute; mso-position-vertical-relative: text" type="#_x0000_t75"><v:imagedata o:title="" src="file:///D:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/09/clip_image001.png"><FONT color=#000080 size=2></FONT></v:imagedata></v:shape><SPAN lang=EN-US><FONT size=2><FONT color=#000080>Begin <SPAN style="mso-spacerun: yes">&nbsp;</SPAN></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><FONT size=2><FONT color=#000080><SPAN lang=EN-US><SPAN style="mso-spacerun: yes">&nbsp; </SPAN>//</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">第</SPAN><SPAN lang=EN-US>1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">步：创建树、增加第一个结点</SPAN><SPAN lang=EN-US>0</SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT color=#000080 size=2>YuTree := TYuTree.Create;</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><FONT size=2><FONT color=#000080><SPAN lang=EN-US>Node := YuTree.Add(nil);//nil,</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">表示增加根结点</SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT color=#000080 size=2>Node.Data := Pointer(0);</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 30pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.0pt"><v:shape id=_x0000_s1027 style="MARGIN-TOP: 0px; Z-INDEX: 2; LEFT: 0px; MARGIN-LEFT: 315pt; WIDTH: 107.25pt; POSITION: absolute; HEIGHT: 120pt; TEXT-ALIGN: left; mso-position-horizontal: absolute; mso-position-horizontal-relative: text; mso-position-vertical: absolute; mso-position-vertical-relative: text" type="#_x0000_t75"><v:imagedata o:title="" src="file:///D:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/09/clip_image003.png"><FONT color=#000080 size=2></FONT></v:imagedata></v:shape><FONT size=2><FONT color=#000080><SPAN lang=EN-US>//</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">第</SPAN><SPAN lang=EN-US>2</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">步：在结点</SPAN><SPAN lang=EN-US>0</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">下增加子结点</SPAN><SPAN lang=EN-US>1</SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><FONT size=2><FONT color=#000080><SPAN lang=EN-US>Node := YuTree.AddChild(Node);Node</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">指向结点</SPAN><SPAN lang=EN-US>0</SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT color=#000080 size=2>Node.Data := Pointer(1);</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 30pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.0pt"><v:shape id=_x0000_s1028 style="MARGIN-TOP: 0px; Z-INDEX: 3; LEFT: 0px; MARGIN-LEFT: 315pt; WIDTH: 108pt; POSITION: absolute; HEIGHT: 118.5pt; TEXT-ALIGN: left; mso-position-horizontal: absolute; mso-position-horizontal-relative: text; mso-position-vertical: absolute; mso-position-vertical-relative: text" type="#_x0000_t75"><v:imagedata o:title="" src="file:///D:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/09/clip_image005.png"><FONT color=#000080 size=2></FONT></v:imagedata></v:shape><FONT size=2><FONT color=#000080><SPAN lang=EN-US>//</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">第</SPAN><SPAN lang=EN-US>3</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">步：在结点</SPAN><SPAN lang=EN-US>1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">下增加子结点</SPAN><SPAN lang=EN-US>2</SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT color=#000080 size=2>Node := YuTree.AddChild(Node);</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT color=#000080 size=2>Node.Data := Pointer(2);</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 31.5pt; mso-char-indent-count: 3.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US><FONT size=2><FONT color=#000080>&nbsp;<o:p></o:p></FONT></FONT></SPAN></P>