📄 例5-8.mht
字号:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>元以=
下者，按九折优惠。</s=
pan></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"'>在</span><=
span
lang=3DEN-US>3000</span><span style=3D'font-family:SimSun;mso-ascii-font-fa=
mily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>元以=
上</span><span
lang=3DEN-US>5000</span><span style=3D'font-family:SimSun;mso-ascii-font-fa=
mily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>元以=
下者，按八五折优惠=
2290;</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"'>④</span> <span style=3D'font-family:SimSun;mso-asc=
ii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>在</span><=
span
lang=3DEN-US>5000</span><span style=3D'font-family:SimSun;mso-ascii-font-fa=
mily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>元以=
上者，按八折优惠。</s=
pan></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"'>编写程序，输入=
购物款数，计算并输=
0986;优惠价。</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";mso-bidi-font-weight:bold'>分析：</span=
><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>设购物款数为</span><i
style=3D'mso-bidi-font-style:normal'><span lang=3DEN-US>x</span></i><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>元，优惠价为</span><i
style=3D'mso-bidi-font-style:normal'><span lang=3DEN-US>y</span></i><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>元，优惠付款公=
式为</span></p>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span lang=
=3DEN-US><sub><!--[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:153pt;
height:81pt' o:ole=3D"" fillcolor=3D"window">
<v:imagedata src=3D"file7640.files/image001.wmz" o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img width=3D204 height=3D108
src=3D"file7640.files/image002.gif" v:shapes=3D"_x0000_i1025"><![endif]></s=
ub><!--[if gte mso 9]><xml>
<o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1025"
DrawAspect=3D"Content" ObjectID=3D"_1127380662">
</o:OLEObject>
</xml><![endif]--></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=
应用程序用户界面与=
5774;置对象属性，如图</span=
><span
lang=3DEN-US>5-4</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
style=3D'mso-no-proof:yes'><!--[if gte vml 1]><v:shape id=3D"_x0000_i1026" =
type=3D"#_x0000_t75"
style=3D'width:119.4pt;height:89.4pt' fillcolor=3D"window">
<v:imagedata src=3D"file7640.files/image003.png" o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img width=3D159 height=3D119
src=3D"file7640.files/image004.jpg" v:shapes=3D"_x0000_i1026"><![endif]></s=
pan><span
lang=3DEN-US style=3D'mso-font-kerning:0pt;mso-no-proof:yes'><o:p></o:p></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>5-4 <span
style=3D'color:red'><span style=3D'mso-spacerun:yes'> </span></span></=
span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
Roman'>计算优惠价</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"'>编写=
事件代码。命令按钮</s=
pan><span
lang=3DEN-US>Command1</span><span style=3D'font-family:SimSun;mso-ascii-fon=
t-family:
"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=
件代码为：</span></p>
<p class=3Da><b style=3D'mso-bidi-font-weight:normal'><span lang=3DEN-US>Pr=
ivate Sub
Command1_<span class=3DGramE>Click()</span><o:p></o:p></span></b></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>Dim x <span
class=3DGramE>As</span> Single, y As Single</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>x =3D <span
class=3DGramE>Val(</span>Text1.Text)</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>If x
< 1000 Then</span></p>
<p class=3Da style=3D'tab-stops:126.6pt 147.7pt 168.8pt 200.45pt 232.1pt 25=
3.2pt 295.4pt'><span
lang=3DEN-US><span style=3D'mso-spacerun:yes'> </span>y =
=3D x<span
style=3D'mso-spacerun:yes'> </span><span
style=3D'mso-tab-count:5'> &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; </span>'
</span><span class=3DGramE><span style=3D'font-family:SimSun;mso-ascii-font=
-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>不</span><=
/span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>打折</span></p>
<p class=3Da style=3D'tab-stops:295.4pt'><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span>Else</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> &nbs=
p;
</span>If x < 2000 Then<span style=3D'mso-spacerun:yes'> </span><s=
pan
style=3D'mso-tab-count:5'> &=
nbsp; &nbs=
p; &=
nbsp; </span>'
</span><span style=3D'font-family:SimSun;mso-ascii-font-family:"Times New R=
oman";
mso-hansi-font-family:"Times New Roman"'>九五折</span></p>
<p class=3Da><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span>y =3D 0.95=
* x</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> &nbs=
p;
</span>Else</span></p>
<p class=3Da><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span>If x < =
3000
Then</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </sp=
an><span
style=3D'mso-spacerun:yes'> </span>y =
=3D 0.9 *
x<span style=3D'mso-spacerun:yes'> </span><span style=3D'mso-ta=
b-count:
5'> =
&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"'>九折</span></p>
<p class=3Da><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span>Else</span=
></p>
<p class=3Da><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </spa=
n>If x
< 5000 Then</span></p>
<p class=3Da><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> =
</span>y =3D 0.85 * x<span style=3D'mso-spacerun:yes'> </span><span
style=3D'mso-tab-count:5'> &=
nbsp; &nbs=
p; &=
nbsp; </span>'
</span><span style=3D'font-family:SimSun;mso-ascii-font-family:"Times New R=
oman";
mso-hansi-font-family:"Times New Roman"'>八五折</span></p>
<p class=3Da><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </spa=
n>Else</span></p>
<p class=3Da><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> =
</span>y =3D 0.8 * x<span style=3D'mso-spacerun:yes'> </span><s=
pan
style=3D'mso-tab-count:5'> &=
nbsp; &nbs=
p; &=
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