📄 例8-10.mht
字号:
#22914;下：</span></p>
<p class=3Da><b><span lang=3DEN-US>Sub tryout(<span class=3DSpellE>ByVal</s=
pan> x As
Integer, <span class=3DSpellE>ByVal</span> y As Integer)<o:p></o:p></span><=
/b></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>x =3D x
+ 100<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"'>在子程序&#=
20013;改变变量的值</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>y =3D y
* 6<span style=3D'mso-spacerun:yes'> </span><span style=3D'mso-=
tab-count:
6'> =
&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"'>在子程序&#=
20013;改变变量的值</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>Print
"x=3D"; x, "y=3D"; y<span style=3D'mso-spacerun:yes'>&n=
bsp;
</span><span style=3D'mso-tab-count:4'> =
&nb=
sp; </spa=
n>'
</span><span style=3D'font-family:SimSun;mso-ascii-font-family:"Times New R=
oman";
mso-hansi-font-family:"Times New Roman"'>在子程序&#=
20013;输出变量的值</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"'>窗体</span><span lang=3DEN-US>Form</span><sp=
an
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>的</span><span lang=3DEN-US>Click</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>事件代码与例</span><=
span
lang=3DEN-US>8-9</span><span style=3D'font-family:SimSun;mso-ascii-font-fam=
ily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>相同=
。</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"'>程序运行后，输=
出结果如图</span><span
lang=3DEN-US>8-17</span><span style=3D'font-family:SimSun;mso-ascii-font-fa=
mily:
"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:105.6pt;
height:42.6pt'>
<v:imagedata src=3D"file6944.files/image001.png" o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img width=3D141 height=3D57
src=3D"file6944.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>8-17<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'>ߩ=
6;值调用</span></h6>
<p class=3DMsoNormal><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'> </span></span><span class=3DG=
ramE><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>传址比</span></span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>传值效率高。但=
在<span
class=3DGramE>传址方式</span>中，উ=
8;参不是一个真正的局&=
#37096;变量，有可能对程=
207;的执行产生不必要的=
;干扰。而在传值方式&#=
20013;，形参是一个真正į=
40;局部变量，当在程序=
的其他地方使用时，=
9981;会对程序产生干扰Ӎ=
0;</span></p>
<p class=3DMsoNormal><span lang=3DEN-US><o:p> </o:p></span></p>
</div>
</body>
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