📄 csdn_文档中心_路由模拟——设计方案的实现(4).htm
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<TD width=500> 毕业设计，路由算法的模拟</TD></TR>
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<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><FONT
size=3><SPAN lang=EN-US></SPAN></FONT> </P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><FONT
size=3><SPAN lang=EN-US>3</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">，</SPAN></FONT><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">设置路由表</SPAN><SPAN
lang=EN-US
style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><?xml:namespace
prefix = o ns = "urn:schemas-microsoft-com:office:office"
/><o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">方法名称：<SPAN
lang=EN-US><SPAN style="mso-tab-count: 1">
</SPAN><SPAN style="mso-tab-count: 1">
</SPAN><SPAN style="mso-tab-count: 1">
</SPAN></SPAN></SPAN><B><SPAN lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">CentralRout::SetRoutTable</SPAN></B><SPAN
lang=EN-US
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">方法参数：<SPAN
lang=EN-US><SPAN style="mso-tab-count: 1">
</SPAN><SPAN
style="mso-tab-count: 2">
</SPAN>无<o:p></o:p></SPAN></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">返回值：<SPAN
lang=EN-US><SPAN
style="mso-tab-count: 2"> </SPAN><SPAN
style="mso-tab-count: 2">
</SPAN>无<o:p></o:p></SPAN></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 104.8pt; TEXT-ALIGN: left; TEXT-INDENT: -104.8pt; mso-layout-grid-align: none"><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">方法的目的：<SPAN
lang=EN-US><SPAN
style="mso-tab-count: 1">
</SPAN>填写路由表。局部变量</SPAN></SPAN><SPAN lang=EN-US
style="COLOR: blue; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">int</SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">
**result，由路由计算方法填充，是目标路由器标号与应传输的下一个路由器标号的对映表，<SPAN
style="COLOR: black">核心过程就是通过该变量完成路由表的设置。<o:p></o:p></SPAN></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">可能的出错：<SPAN
lang=EN-US><SPAN style="mso-tab-count: 1"> </SPAN><SPAN
style="mso-tab-count: 2">
</SPAN>文件操作失败：系统退出</SPAN></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">//
设置路由表<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="COLOR: blue; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">void</SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">
CentralRout::SetRoutTable(<SPAN
style="COLOR: blue">void</SPAN>)<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">{<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">int</SPAN> **result =
NULL;<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">int</SPAN> routNum =
routTable.GetRoutNum();<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN>TableNode
_routTable[MAX_ROUT_TABLE_SIZE];<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">int</SPAN> selfID = 0;<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">int</SPAN> *index = NULL;<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">unsigned</SPAN> <SPAN
style="COLOR: blue">int</SPAN> **addr = NULL;<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1">
</SPAN>std::fstream indexFile;<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">char</SPAN>
*indexFileName="IndexAddr.txt";<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"> <o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: green">//申请空间<o:p></o:p></SPAN></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN>result =
<SPAN style="COLOR: blue">new</SPAN> <SPAN
style="COLOR: blue">int</SPAN> *[routNum];<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">for</SPAN>(<SPAN style="COLOR: blue">int</SPAN>
i=0;i<routNum;i++)<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="mso-tab-count: 1">
</SPAN>result[i]=<SPAN style="COLOR: blue">new</SPAN> <SPAN
style="COLOR: blue">int</SPAN>[2];<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"> <o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN>index =
<SPAN style="COLOR: blue">new</SPAN> <SPAN
style="COLOR: blue">int</SPAN>[routNum];<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN>addr =
<SPAN style="COLOR: blue">new</SPAN> <SPAN
style="COLOR: blue">unsigned</SPAN> <SPAN
style="COLOR: blue">int</SPAN> *[routNum];<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
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