📄 例8-1.mht
字号:
lang=3DEN-US>8-1</span><span style=3D'font-family:SimSun;mso-ascii-font-fam=
ily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>】编=
写一个计算矩形面积=
0340;</span><span
lang=3DEN-US>Sub</span><span style=3D'font-family:SimSun;mso-ascii-font-fam=
ily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>过程=
，然后调用该过程计=
1639;矩形面积。</span></p>
<p class=3DMsoNormal><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span></span><b style=3D'mso=
-bidi-font-weight:
normal'><span style=3D'font-family:SimSun;mso-ascii-font-family:"Times New =
Roman";
mso-hansi-font-family:"Times New Roman"'>分析：</span></b=
><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>使用通用过程来=
计算并输出矩形的面=
1215;，它有两个形参，࠳=
8;别为矩形的长和宽。&=
#22312;窗体的单击事件过=
243;</span><span
class=3DSpellE><span lang=3DEN-US>Form_Click</span></span><span style=3D'fo=
nt-family:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times=
New Roman"'>中，从键盘输入௽=
7;形的长和宽，并用它&=
#20204;作为实参调用通用$=
807;程。</span></p>
<p class=3DMsoNormal><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span></span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>设计步骤如下：=
</span></p>
<p class=3DMsoNormal><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span></span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>①</span> <span style=3D'font-family:SimSun;mso-asc=
ii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>建立=
应用程序用户界面和=
5774;置对象属性，如图</span=
><span
lang=3DEN-US>8-5</span><span style=3D'font-family:SimSun;mso-ascii-font-fam=
ily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>所示=
。</span></p>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span lang=
=3DEN-US><!--[if gte vml 1]><v:shapetype
id=3D"_x0000_t75" coordsize=3D"21600,21600" o:spt=3D"75" o:preferrelative=
=3D"t"
path=3D"m@4@5l@4@11@9@11@9@5xe" filled=3D"f" stroked=3D"f">
<v:stroke joinstyle=3D"miter"/>
<v:formulas>
<v:f eqn=3D"if lineDrawn pixelLineWidth 0"/>
<v:f eqn=3D"sum @0 1 0"/>
<v:f eqn=3D"sum 0 0 @1"/>
<v:f eqn=3D"prod @2 1 2"/>
<v:f eqn=3D"prod @3 21600 pixelWidth"/>
<v:f eqn=3D"prod @3 21600 pixelHeight"/>
<v:f eqn=3D"sum @0 0 1"/>
<v:f eqn=3D"prod @6 1 2"/>
<v:f eqn=3D"prod @7 21600 pixelWidth"/>
<v:f eqn=3D"sum @8 21600 0"/>
<v:f eqn=3D"prod @7 21600 pixelHeight"/>
<v:f eqn=3D"sum @10 21600 0"/>
</v:formulas>
<v:path o:extrusionok=3D"f" gradientshapeok=3D"t" o:connecttype=3D"rect"/>
<o:lock v:ext=3D"edit" aspectratio=3D"t"/>
</v:shapetype><v:shape id=3D"_x0000_i1025" type=3D"#_x0000_t75" style=3D'wi=
dth:107.4pt;
height:54pt'>
<v:imagedata src=3D"file0705.files/image001.png" o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img width=3D143 height=3D72
src=3D"file0705.files/image002.jpg" v:shapes=3D"_x0000_i1025"><![endif]></s=
pan></p>
<h6><span style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roma=
n";
mso-hansi-font-family:Roman'>图</span><span lang=3DEN-US>8-5<span
style=3D'mso-spacerun:yes'> </span></span><span style=3D'font-family:=
SimSun;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:Roman'>ॿ=
4;立计算矩形面积的用&=
#25143;界面</span></h6>
<p class=3DMsoNormal><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span></span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>②</span> <span style=3D'font-family:SimSun;mso-asc=
ii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>在代=
码窗口中直接编写输=
0837;通用事件代码。</span></p>
<p class=3Da><b><span lang=3DEN-US>Sub <span class=3DSpellE><span class=3DG=
ramE>recarea</span></span><span
class=3DGramE>(</span><span class=3DSpellE>rlen</span>, <span class=3DSpell=
E>rwid</span>)<o:p></o:p></span></b></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>Dim
area</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>area =3D
<span class=3DSpellE>rlen</span> * <span class=3DSpellE>rwid</span><span
style=3D'mso-spacerun:yes'> </span><span
style=3D'mso-tab-count:4'> &=
nbsp; &nbs=
p; </span>'
</span><span style=3D'font-family:SimSun;mso-ascii-font-family:"Times New R=
oman";
mso-hansi-font-family:"Times New Roman"'>计算矩形&#=
38754;积</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan><span
class=3DSpellE>MsgBox</span> "</span><span style=3D'font-family:SimSun;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Ro=
man"'>矩形的面积是：</span><span
lang=3DEN-US>" & area<span style=3D'mso-spacerun:yes'> =
</span><span style=3D'mso-tab-count:2'> =
</span>'
</span><span style=3D'font-family:SimSun;mso-ascii-font-family:"Times New R=
oman";
mso-hansi-font-family:"Times New Roman"'>用消息框&#=
36755;出矩形面积</span></p>
<p class=3Da><b><span lang=3DEN-US>End Sub<o:p></o:p></span></b></p>
<p class=3DMsoNormal><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span></span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>③</span> <span style=3D'font-family:SimSun;mso-asc=
ii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>编写=
窗体</span><span
lang=3DEN-US>Form</span><span style=3D'font-family:SimSun;mso-ascii-font-fa=
mily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>的单=
击</span><span
lang=3DEN-US>click</span><span style=3D'font-family:SimSun;mso-ascii-font-f=
amily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>事件=
代码。</span></p>
<p class=3Da><b><span lang=3DEN-US>Private Sub <span class=3DSpellE>Form_<s=
pan
class=3DGramE>click</span></span><span class=3DGramE>()</span><o:p></o:p></=
span></b></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>Dim a,
b</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>a =3D <span
class=3DSpellE>InputBox</span>("</span><span style=3D'font-family:SimS=
un;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Ro=
man"'>请输入矩形面积的ž=
71;度：</span><span
lang=3DEN-US>")<span style=3D'mso-spacerun:yes'> </span><s=
pan
style=3D'mso-tab-count:1'> </span>' </span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>用输入框输入矩=
形的长</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>b =3D <span
class=3DSpellE>InputBox</span>("</span><span style=3D'font-family:SimS=
un;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Ro=
man"'>请输入矩形面积的ê=
85;度：</span><span
lang=3DEN-US>")<span style=3D'mso-spacerun:yes'> </span><s=
pan
style=3D'mso-tab-count:1'> </span>' </span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>用输入框输入矩=
形的宽</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan><span
class=3DSpellE>recarea</span> a, b<span
style=3D'mso-spacerun:yes'> =
</span><span style=3D'mso-tab-count:3'> =
&nb=
sp; </span>'
</span><span style=3D'font-family:SimSun;mso-ascii-font-family:"Times New R=
oman";
mso-hansi-font-family:"Times New Roman"'>调用</span><span
class=3DSpellE><span lang=3DEN-US>recarea</span></span><span style=3D'font-=
family:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times=
New Roman"'>过程，也可以改ߒ=
6;</span><span
lang=3DEN-US>Call <span class=3DSpellE>recarea</span>(a, b)</span></p>
<p class=3Da><b><span lang=3DEN-US>End Sub<o:p></o:p></span></b></p>
<p class=3DMsoNormal><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span></span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>如图</span><span lang=3DEN-US>8-6</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>所示，编写子过=
程与窗体的事件过程=
0195;码。</span></p>
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