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<p><a href="../catalog.htm">目录</a>＞＞第7章</p>
<p align="center" class="shadow1Copy"><b class="p3">第7章 Visual Basic程序</b></p>
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<div align="center"><a href="Chap7-1.htm"><font color="#FFFFFF">第一节 解释语言介绍</font></a></div>
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<div align="center"><a href="Chap7-2.htm"><font color="#FFFFFF">第二节 动态跟踪分析</font></a></div>
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<div align="center"><a href="Chap7-3.htm"><font color="#FFFFFF">第三节 SmartCheck操作</font></a></div>
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<div align="center"><a href="Chap7-4.htm"><font color="#FFFFFF">第四节 拆解习题</font></a></div>
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<p align="center"><span class="p9"><b>第二节 动态跟踪分析</b></span></p>
<p><span class="p9"><font face="Times New Roman" color="#FF3366"><font color="#000000">一、<a href="#1">SOFTICE配制</a></font></font><font color="#000000"><u><font face="宋体"><br>
</font></u></font></span><font color="#000000"><span class="p9"><font face="Times New Roman">二、VB dll</font>
<font face="宋体">常用函数</font></span><br>
<span class="p9"><font face="Times New Roman"> 1</font> <font face="宋体">、<a href="#21">字符处理函数</a></font></span><br>
<span class="p9"><font color="#000000"><span class="p9"><font face="Times New Roman"> </font></span></font><font face="Times New Roman">2</font>
<font face="宋体">、<a href="#22">警告窗口函数</a></font><a href="#22"> </a></span><br>
<span class="p9"><font face="Times New Roman">三、<a href="#3">VB字串格式</a></font>
<br>
四、<a href="#4">oleaut32.dll<span class="p9">简介 </span></a><br>
</span><font face="Times New Roman"><span class="p9"><span class="p9">五、<a href="#5">Visual Basic
程序比较方法</a></span></span></font><a href="#5"></a></font></p>
<p><font color="#000000"><span class="p9"><font face="Times New Roman"><u><b><font color="#FF3366"><a name="1"></a>一、SOFTICE</font></b></u></font><font color="#FF3366"><b><u><font face="宋体">
配制</font> </u></b></font></span></font></p>
<p> <span class="p9"><font face="宋体" color="#000000"> 虽然大部分</font> <font face="Times New Roman" color="#000000">VB</font>
<font face="宋体" color="#000000">程序仍调用</font> <font face="Times New Roman" color="#000000">Win32 API</font>
<font face="宋体" color="#000000">函数，但如想在</font> <font face="Times New Roman" color="#000000">VB dll</font>
<font face="宋体" color="#000000">运行库中设断的话，你就必须把</font> <font face="Times New Roman" color="#000000">VB dll</font>
<font face="宋体" color="#000000">运行库加入</font> <font face="Times New Roman" color="#000000">SOFTICE</font>
<font face="宋体" color="#000000">配制里去。具体你可参考第五课中的《</font> <font face="Times New Roman" color="#000000">SOFTICE</font>
<font face="宋体" color="#000000">安装及使用》。</font> </span></p>
<p> <span class="p9"><font face="宋体" color="#000000">下例是在</font> <font face="Times New Roman" color="#000000">win95/98</font>
<font face="宋体" color="#000000">下你把相关的</font> <font face="Times New Roman" color="#000000">VB DLL</font>
<font face="宋体" color="#000000">运行库加入</font> <font face="Times New Roman" color="#000000">winice.dat</font>
<font face="宋体" color="#000000">配制文件里。</font> <font face="Times New Roman" color="#000000">(</font>
<font face="宋体" color="#000000">部分</font> <font face="Times New Roman" color="#000000">)</font>
</span></p>
<p> </p>
<p> <span class="p9"><font face="Times New Roman" color="#000000">;</font> <font face="宋体" color="#000000">注意分号后是描述语言，不被执行。每次只装载需要的一种</font>
<font face="Times New Roman" color="#000000">VB dll</font> <font face="宋体" color="#000000">，最好不要同时装载两个以上，把要装载那种</font>
<font face="Times New Roman" color="#000000">VB dll</font> <font face="宋体" color="#000000">那一行的分号去掉，重新启动即可。另外，判断软件是何种</font>
<font face="Times New Roman" color="#000000">VB dll</font> <font face="宋体" color="#000000">有几种方法，最直接一种用</font>
<font face="Times New Roman" color="#000000">WDasm89</font> <font face="宋体" color="#000000">查看，还有一种方法是用十六进制工具打开程序观察。或用</font>
<font face="Times New Roman" color="#000000">SOFTICE</font> <font face="宋体" color="#000000">跟进去（用</font>
<font face="Times New Roman" color="#000000">bpx hmemcpy)</font> <font face="宋体" color="#000000">，稍转一圈，你观察一下调试窗口领空处会出现何种</font>
<font face="Times New Roman" color="#000000">VB DLL</font> <font face="宋体" color="#000000">即可。</font>
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<p><span class="p9"><font face="Times New Roman" color="#000000">; EXP=c:\windows\system\msvbvm60.dll ; Visual Basic 6</font>
<br>
</span><span class="p9"><font face="Times New Roman" color="#000000">;
EXP=c:\windows\system\msvbvm50.dll ; Visual Basic 5</font>
<br>
</span><span class="p9"><font face="Times New Roman" color="#000000">; EXP=c:\windows\system\vb40032.dll ; Visual Basic 4(32-bit)</font>
<br>
</span><span class="p9"><font face="Times New Roman" color="#000000">; EXP=c:\windows\system\vb40016.dll
;Visual Basic 4(16-bit)</font> <font face="宋体" color="#000000">较少见</font>
<font face="Times New Roman" color="#000000"> </font> <br>
</span><span class="p9"><font face="Times New Roman" color="#000000">; EXP=c:\windows\system\vbrun300.dll
; Visual Basic 3</font> </span></p>
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<p> <span class="p9"><font face="Times New Roman" color="#000000"> </font>
</span><span class="p9"><font face="宋体" color="#000000">这样配制好后，重新启动，就可设</font>
<font face="Times New Roman" color="#000000">VB</font> <font face="宋体" color="#000000">运行库中各函数的断点了。</font></span>
</p>
<p> <span class="p9"><font face="Times New Roman" color="#000000">--------------------------------------------------------------------------------</font>
</span> </p>
<p> <b><font color="#FF3366"><span class="p9"><font face="Times New Roman"><u>二、VB dll</u></font>
<u><font face="宋体">常用函数</font></u></span></font></b></p>
<p> <span class="p9"><font face="Times New Roman" color="#0000FF"><a name="21"></a>1</font>
<font face="宋体" color="#0000FF">、字符处理</font><font color="#0000FF">函数</font>
</span></p>
<p class="p9"> <span class="p9"><font face="Times New Roman" color="#000000">MultiByteToWideChar, rtcR8ValFromBstr, WideCharToMultiByte, __vbaStrCmp, __vbaStrComp, __vbaStrCopy, __vbaStrMove, __vbaVarTstNe .</font>
</span></p>
<p> <span class="p9"><font face="宋体" color="#000000"><b><span class="p8">注意:这些函数前的下划线</span></b></font>
<span class="p8"><b><font face="Times New Roman" color="#000000">__</font> <font face="宋体" color="#000000">是由两根短线</font>
<font face="Times New Roman" color="#000000">_</font> <font face="宋体" color="#000000">组成的，不要弄错。</font>
<font face="宋体" color="#000000">如果你是</font> <font face="Times New Roman" color="#000000">crack VB6</font>
<font face="宋体" color="#000000">程序，你应在断点前增加</font> <font face="Times New Roman" color="#000000">msvbvm60!</font>
<font face="宋体" color="#000000">。</font> </b></span></span><span class="p8"><b><font color="#000000"><span class="p9"><font face="宋体">如：</font>
<font face="Times New Roman"> bpx msvbvm60!__vbastrcomp </font></span></font></b></span></p>
<p> </p>
<p> <span class="p9"><font face="宋体" color="#000000">一些常用字符串函数</font>：</span></p>
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<td width="14%"><span class="p9"><font face="Times New Roman" color="#FF3366">Val()</font></span></td>
<td width="36%"><span class="p9"><font face="宋体" color="#000000">转换字符串为数字</font></span></td>
<td width="12%"><span class="p9"><font face="Times New Roman" color="#FF3399">Rtrim$()</font><font face="Times New Roman" color="#000000"></font></span></td>
<td width="38%"><span class="p9"><font face="宋体" color="#000000">去除字符串左边空格</font></span></td>
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<td width="14%"><span class="p9"><font face="Times New Roman" color="#FF3399">Str$()</font><font face="Times New Roman" color="#000000"> </font></span></td>
<td width="36%"><span class="p9"><font face="宋体" color="#000000">转换数字为字符串</font></span></td>
<td width="12%"><span class="p9"><font face="Times New Roman" color="#FF3399">Trim$()</font></span></td>
<td width="38%"><span class="p9"><font face="宋体" color="#000000">去除字符串两边空格</font></span></td>
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<td width="14%"><span class="p9"><font face="Times New Roman" color="#FF3399">Left$()</font><font face="Times New Roman" color="#000000"> </font></span></td>
<td width="36%"><span class="p9"><font face="宋体" color="#000000">按要求从左取字符。例如：</font>
<font face="Times New Roman" color="#000000"> Left$(Theodolite, 4) = "Theo"</font></span></td>
<td width="12%"><span class="p9"><font face="Times New Roman" color="#FF3399">Asc()</font></span></td>
<td width="38%"><span class="p9"><font face="Times New Roman" color="#000000"> </font>
<font face="宋体" color="#000000">转换字符为</font> <font face="Times New Roman" color="#000000">ANSI</font>
<font face="宋体" color="#000000">编码</font> <font face="Times New Roman" color="#000000"> .</font>
<font face="宋体" color="#000000">例如：</font> <font face="Times New Roman" color="#000000">Asc("A") = 65</font>
<font color="#0000FF">注:65是ASCII码的十进制</font></span></td>
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<td width="14%"><span class="p9"><font face="Times New Roman" color="#FF3399">Ltrim$()</font></span></td>
<td width="36%"><span class="p9"><font face="宋体" color="#000000">去除字符串左边空格例如：</font>
<font face="Times New Roman" color="#000000"> Ltrim$ (" Hello ") = "Hello "</font></span></td>
<td width="12%"><span class="p9"><font face="Times New Roman" color="#FF3399">Chr$()</font></span></td>
<td width="38%"><span class="p9"><font face="宋体" color="#000000">转换</font>
<font face="Times New Roman" color="#000000">ANSI</font> <font face="宋体" color="#000000">编码为字符</font>
<font face="Times New Roman" color="#000000">.</font> <font face="宋体" color="#000000">例如</font>
<font face="Times New Roman" color="#000000"> Chr$(65) = "A"</font></span></td>
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<td width="14%"><span class="p9"><font face="Times New Roman" color="#FF6699">Right$()</font><font face="Times New Roman" color="#000000"></font></span></td>
<td width="36%"><span class="p9"><font face="宋体" color="#000000">按要求从右取字符</font>
<font face="Times New Roman" color="#000000"></font></span></td>
<td width="12%"><span class="p9"></span></td>
<td width="38%"><span class="p9"></span></td>
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<p class="p9">几个常用函数简介：</p>
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