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<p class="a0"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">图</span><span lang="EN-US">1-48<span style="mso-spacerun: yes">
</span></span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">增加消息映射</span></p>
<p class="a5" style="margin-left:2.0gd;text-indent:21.0pt;mso-char-indent-count:
2.0;mso-char-indent-size:10.5pt"><span style="font-family:楷体_GB2312;mso-ascii-font-family:
"Times New Roman"">在弹出的“</span><span lang="EN-US">Add Member
Function</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:"Times New Roman"">”对话框中，输入新函数名，如果不想改函数，直接单击“</span><span lang="EN-US">OK</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:
"Times New Roman"">”按钮，使用默认函数名，如图</span><span lang="EN-US">1-49</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:"Times New Roman"">所示。</span></p>
<p class="MsoNormal" align="center" style="text-align:center"><span lang="EN-US"><!--[if gte vml 1]><v:shape
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<img src="2_1_2.4.jpg" v:shapes="_x0000_i1028" width="386" height="149"></span></p>
<p class="a0"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">图</span><span lang="EN-US">1-49
</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">增加成员函数</span></p>
<p class="a5"><span style="font-family:楷体_GB2312;mso-ascii-font-family:"Times New Roman"">（</span><span lang="EN-US">7</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:
"Times New Roman"">）使用步骤（</span><span lang="EN-US">3</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:"Times New Roman"">）的方法，编辑此函数。</span></p>
<p class="ac"><span lang="EN-US">void CEx010202Dlg::OnChangeInput()</span></p>
<p class="ac"><span lang="EN-US">{</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>CString strShow ;//</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">显示的内容</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>m_show.GetWindowText(strShow);<span style="mso-tab-count:1">
</span></span><span lang="EN-US" style="font-size:
10.0pt;mso-bidi-font-size:12.0pt;color:black;mso-font-kerning:0pt"><o:p>
</o:p>
</span></p>
<p class="ac"><span style="mso-tab-count: 1; font-size: 10.0pt; mso-bidi-font-size: 12.0pt; color: black; mso-font-kerning: 0pt" lang="EN-US">
</span><span lang="EN-US">CString strInput ;//</span><span style="font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"">用户输入的内容</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>m_input.GetWindowText(strInput);</span></p>
<p class="ac"><span style="mso-tab-count:1" lang="EN-US"> </span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>strInput.MakeUpper();//</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">因为不区分大小写，所以小写变大写，</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>//</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">正确的次数加一</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>if(strShow == strInput)</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:2">
</span>m_iRightNum ++ ;</span></p>
<p class="ac"><span style="mso-tab-count:1" lang="EN-US"> </span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>//</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">选中，以便用户下次输入的时候替换掉已有内容</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>m_input.SetSel(0,-1);</span></p>
<p class="ac"><span style="mso-tab-count:1" lang="EN-US"> </span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>//</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">随机生成一个大写字母</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>char ch = 'A' + rand()% 26 ;</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>strShow = ch ;</span><span lang="EN-US" style="font-size:10.0pt;mso-bidi-font-size:12.0pt;
color:black;mso-font-kerning:0pt"><o:p>
</o:p>
</span></p>
<p class="ac"><span lang="EN-US" style="font-size:10.0pt;mso-bidi-font-size:12.0pt;
color:black;mso-font-kerning:0pt"><span style="mso-tab-count:1">
</span>m_show.SetWindowText(strShow);</span></p>
<p class="ac"><span lang="EN-US">}</span></p>
<p class="a5"><span style="font-family:楷体_GB2312;mso-ascii-font-family:"Times New Roman"">（</span><span lang="EN-US">8</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:
"Times New Roman"">）编辑对话框状态下，双击“</span><span lang="EN-US">OK</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:"Times New Roman"">”按钮。会弹出“</span><span lang="EN-US">Add
Member Function</span><span style="font-family:楷体_GB2312;
mso-ascii-font-family:"Times New Roman"">”对话框，直接单击“</span><span lang="EN-US">OK</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:"Times New Roman"">”按钮，编辑此函数，代码如下：</span></p>
<p class="ac"><span lang="EN-US">void CEx010202Dlg::OnOK()</span></p>
<p class="ac"><span lang="EN-US">{</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>CString strMess ;</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>strMess.Format("</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">你共正确输入了</span><span lang="EN-US">%d</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">个字符</span><span lang="EN-US">",m_iRightNum);</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>AfxMessageBox(strMess);</span><span lang="EN-US" style="font-size:10.0pt;mso-bidi-font-size:12.0pt;color:black;
mso-font-kerning:0pt"><o:p>
</o:p>
</span></p>
<p class="ac"><span lang="EN-US"> <o:p>
</o:p>
</span></p>
<p class="ac"><span lang="EN-US"><span style="mso-tab-count:1">
</span>CDialog::OnOK();</span></p>
<p class="ac"><span lang="EN-US">}</span></p>
<p class="a5"><span style="font-family:楷体_GB2312;mso-ascii-font-family:"Times New Roman"">（</span><span lang="EN-US">9</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:
"Times New Roman"">）编译并运行</span><span lang="EN-US">Ex010202.exe</span><span style="font-family:楷体_GB2312;mso-ascii-font-family:"Times New Roman"">，按照提示输入字符。如果想查看成绩，单击“确定”按钮，程序结束时会自动统计成绩。</span></p>
<div style="border:solid windowtext .5pt;padding:1.0pt 4.0pt 1.0pt 4.0pt;
background:#D9D9D9">
<p class="aa"><span style="font-family:仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">注意：步骤（</span><span lang="EN-US">6</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:
"Times New Roman"">）以后简称为“利用类向导，在类</span><span lang="EN-US">CEx010202Dlg</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">中，为</span><span lang="EN-US">IDC_INPUT</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:
"Times New Roman"">的</span><span lang="EN-US">EN_CHANGE</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">消息增加响应函数”，如果类名和</span><span lang="EN-US">Object
ID</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:
"Times New Roman"">相同，则简称为“利用类向导为</span><span lang="EN-US">XXXX</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">的</span><span lang="EN-US">XXXX</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:
"Times New Roman"">消息增加响应函数”，如“利用类向导为</span><span lang="EN-US" style="mso-bidi-font-size:
12.0pt">CEx010202Dlg</span><span style="mso-bidi-font-size:12.0pt;font-family:
仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">的</span><span lang="EN-US" style="mso-bidi-font-size:12.0pt">WM_INITDIALOG</span><span style="mso-bidi-font-size:
12.0pt;font-family:仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">消息增加响应函数”。如果在“</span><span lang="EN-US" style="mso-bidi-font-size:12.0pt">Messages</span><span style="mso-bidi-font-size:12.0pt;font-family:仿宋_GB2312;mso-ascii-font-family:
"Times New Roman"">”列表框中选择的是虚函数，则简称为“</span><span style="font-family:仿宋_GB2312;
mso-ascii-font-family:"Times New Roman"">利用类向导重载</span><span lang="EN-US">XXXX</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">类的虚函数</span><span lang="EN-US">XXXX</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:
"Times New Roman"">”，如</span><span style="mso-bidi-font-size:12.0pt;font-family:
仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">“</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">利用类向导重载</span><span lang="EN-US" style="mso-bidi-font-size:12.0pt">CEx010202D</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">类的虚函数</span><span lang="EN-US" style="mso-bidi-font-size:12.0pt">PreTranslateMessage</span><span style="font-family:仿宋_GB2312;mso-ascii-font-family:"Times New Roman"">”。</span><span style="mso-bidi-font-size:12.0pt;font-family:仿宋_GB2312;mso-ascii-font-family:
"Times New Roman"">有些“消息”实际上是虚函数，为了和类向导保持一致，权且这么称呼。</span></p>
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