📄 例10-5.mht
字号:
9.0pt;padding-bottom:0cm;padding-left:9.0pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center;mso-elemen=
t:frame;
mso-element-frame-width:148.4pt;mso-element-frame-height:108.15pt;mso-ele=
ment-frame-hspace:
9.0pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;
mso-element-anchor-horizontal:margin;mso-element-top:6.15pt'><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" fill=
ed=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'=
width:124.2pt;
height:77.4pt' o:ole=3D"">
<v:imagedata src=3D"file0517.files/image001.png" o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img width=3D166 height=3D103
src=3D"file0517.files/image002.jpg" v:shapes=3D"_x0000_i1025"><![endif]><=
!--[if gte mso 9]><xml>
<o:OLEObject Type=3D"Embed" ProgID=3D"PBrush" ShapeID=3D"_x0000_i1025"
DrawAspect=3D"Content" ObjectID=3D"_1127415409">
</o:OLEObject>
</xml><![endif]--></span></p>
<h6 style=3D'mso-element:frame;mso-element-frame-width:148.4pt;mso-elemen=
t-frame-height:
108.15pt;mso-element-frame-hspace:9.0pt;mso-element-wrap:around;mso-eleme=
nt-anchor-vertical:
paragraph;mso-element-anchor-horizontal:margin;mso-element-top:6.15pt'><s=
pan
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-h=
ansi-font-family:
Roman'>图</span><span lang=3DEN-US>10-8 <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'>=
377;使用次数限制的程序=
;</span></h6>
</td>
</tr>
</table>
</div>
<p class=3Da0><span lang=3DEN-US><o:p> </o:p></span></p>
<p class=3Da0><span lang=3DEN-US><o:p> </o:p></span></p>
<p class=3Da0><span lang=3DEN-US><o:p> </o:p></span></p>
<p class=3Da0><span lang=3DEN-US><o:p> </o:p></span></p>
<p class=3Da0><span lang=3DEN-US><o:p> </o:p></span></p>
<p class=3Da0><span lang=3DEN-US><o:p> </o:p></span></p>
<p class=3Da0><span lang=3DEN-US><o:p> </o:p></span></p>
<p class=3Da0><span lang=3DEN-US><o:p> </o:p></span></p>
<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"'>在例</span></span><span lang=3DEN-US>10-4</s=
pan><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>代码中添加窗体=
激活时执行的代码如=
9979;：</span></p>
<p class=3Da><b><span lang=3DEN-US>Private Sub <span class=3DSpellE>Form_Ac=
tivate</span>()
</span></b><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> =
</span><span
style=3D'mso-tab-count:1'> =
</span>'
</span><span style=3D'font-family:SimSun;mso-ascii-font-family:"Times New R=
oman";
mso-hansi-font-family:"Times New Roman"'>窗体激活&#=
26102;执行的代码</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>a =3D
Dir("c:\windows\pw.dat")<span style=3D'mso-spacerun:yes'> &n=
bsp;
</span><span style=3D'mso-tab-count:1'> </span>' Dir</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>函数若返回一个=
空字符串，表示指定=
0340;文件不存在</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>If a =3D
"" Then</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> &nbs=
p;
</span>b =3D 1</span></p>
<p class=3Da><span lang=3DEN-US>' <span style=3D'mso-spacerun:yes'> </=
span><span
class=3DSpellE>pw.dat</span> </span><span style=3D'font-family:SimSun;mso-a=
scii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>为存=
放使用次数的随机文=
0214;，将此文件删除后ࡤ=
7;以再使用</span><span
lang=3DEN-US>4</span><span style=3D'font-family:SimSun;mso-ascii-font-famil=
y:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>次</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> &nbs=
p;
</span>Open "c:\windows\pw.dat" For Random As #1 Len =3D 20<span
style=3D'mso-spacerun:yes'> </span></span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> &nbs=
p;
</span>Put #1, 1, b</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> &nbs=
p;
</span>Close #1</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>End If</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>Open
"c:\windows\pw.dat" For Random As #1 Len =3D 20</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>Get
#1, 1, b</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>If b
> 4 Then<span style=3D'mso-spacerun:yes'> </span></span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> &nbs=
p;
</span><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 Roman"'>警告：该软件已๠=
7;期，请购买正式版！<=
/span><span
lang=3DEN-US>", 48, "</span><span style=3D'font-family:SimSun;mso=
-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>注意=
！</span><span
lang=3DEN-US>"</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> &nbs=
p;
</span>Close #1</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> &nbs=
p;
</span>End</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>End If</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>b =3D b
+ 1<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"'>程序每使&#=
29992;一次，</span><span
class=3DSpellE><span lang=3DEN-US>pw.dat</span></span><span style=3D'font-f=
amily:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times=
New Roman"'>中存放的数值加</span=
><span
lang=3DEN-US>1</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>Put
#1, 1, b</span></p>
<p class=3Da><span lang=3DEN-US><span style=3D'mso-spacerun:yes'> </s=
pan>Close
#1</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><o:p> </o:p></span></p>
</div>
</body>
</html>
------=_NextPart_01C39044.8B309A60
Content-Location: file:///C:/C2C945D5/file0517.files/image001.png
Content-Transfer-Encoding: base64
Content-Type: image/png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⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -