4.mht

本教程部分中将简单讨论COM和VB的相关内容

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class=3Df14>=A1=A1=A1=A1=B4=F2=BF=AA=C9=CF=D2=BB=BD=DA=B5=C4=B9=A4=B3=CC=A3=
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          <TD>=A1=A1=A1=A1Public Enum =
CoatType<BR><BR>=A1=A1=A1=A1=A1=A1BigAndShaggy =3D=20
            1<BR><BR>=A1=A1=A1=A1=A1=A1ShortCrewCut =3D =
2<BR><BR>=A1=A1=A1=A1=A1=A1PoodleStyleAfro =3D=20
            3<BR><BR>=A1=A1=A1=A1=A1=A1Unknown =3D =
4<BR><BR>=A1=A1=A1=A1end Enum</TD></TR></TBODY></TABLE></P>
      =
<P><BR>=A1=A1=A1=A1=B9=D8=BC=FC=B4=CA"Enum"=BE=CD=CA=C7=D3=C3=C0=B4=B6=A8=
=D2=E5=C3=B6=BE=D9=B5=C4=A3=AC=BB=BB=BE=E4=BB=B0=CB=B5=A3=AC=CB=FC=CA=C7=BF=
=C9=C4=DC=D1=A1=CF=EE=B5=C4=C1=D0=B1=ED=A1=A3=B8=F7=D1=A1=CF=EE=B6=BC=D3=D0=
=CF=E0=D3=A6=B5=C4=CA=FD=D7=D6=A3=AC=D2=B2=BE=CD=CA=C7=CB=B5BigAndShaggy=B1=
=ED=CA=BE1=A3=ACShortCrewCut=B5=C8=D3=DA2=A3=AC=B5=C8=B5=C8=A1=A3<BR><BR>=
=A1=A1=A1=A1=D0=E8=D2=AA=D7=A2=D2=E2=B5=C4=CA=C7=A3=AC=B5=B1=BD=AB=C3=B6=BE=
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=CA=B1=A3=AC=C6=E4=CF=E0=D3=A6=B5=C4=CA=FD=D6=B5=CA=C7=B7=C7=B3=A3=D3=D0=D3=
=C3=B5=C4=A1=A3=D3=C9=D3=DA"BigAndShaggy"=CA=B5=BC=CA=B4=FA=B1=ED=B5=C4=CA=
=C7=CA=FD=D6=B51=A3=AC=CB=F9=D2=D4=BF=C9=D2=D4=D6=B1=BD=D3=BD=AB=C6=E4=B2=
=E5=C8=EB=B5=BD=CA=FD=BE=DD=BF=E2=B5=C4=CA=FD=D6=B5=D7=D6=B6=CE=D6=D0=A1=A3=
=D5=E2=BE=CD=D2=E2=CE=B6=D7=C5=A3=AC=BF=C9=D2=D4=B7=BD=B1=E3=CA=B9=D3=C3=D7=
=D6=B7=FB=B4=AE=C0=B4=CE=AC=BB=A4=CA=FD=BE=DD=BF=E2=A1=A3=20
      =
<BR><BR>=A1=A1=A1=A1=CB=F9=D2=D4=A3=AC=CE=D2=C3=C7=C0=B4=B4=B4=BD=A8=D2=BB=
=B8=F6Dog=B5=C4Coat=C0=E0=D0=CD=C1=D0=B1=ED=A3=AC=B2=A2=C1=ED=CD=E2=B6=A8=
=D2=E5=D2=BB=B8=F6=CA=F4=D0=D4=A3=AC=BD=AB=D5=E2=D0=A9=C0=E0=D0=CD=CC=ED=BC=
=D3=D4=DACDog=C0=E0=D6=D0=A1=A3<BR><BR>=A1=A1=A1=A1=D4=DA=C0=E0=D6=D0=C9=F9=
=C3=F7=CF=C2=C1=D0=B1=E4=C1=BF=A3=BA<BR><BR>=A1=A1=A1=A1Private=20
      udtCoat As=20
      =
CoatType<BR><BR>=A1=A1=A1=A1=D5=E2=B8=F6=B6=A8=D2=E5=B5=C4=CB=BD=D3=D0=B1=
=E4=C1=BF=D3=C3=C0=B4=B1=A3=B4=E6=BC=B4=BD=AB=CC=ED=BC=D3=B5=C4Coat=C0=E0=
=D0=CD=CA=F4=D0=D4=A3=AC=D7=A2=D2=E2=B5=BDudtCoat=B1=E4=C1=BF=BC=C8=B2=BB=
=CA=C7=D7=D6=B7=FB=B4=AE=D2=B2=B2=BB=CA=C7=D5=FB=D0=CD=A3=AC=B6=F8=CA=C7=CE=
=D2=C3=C7=D7=D4=BC=BA=B6=A8=D2=E5=B5=C4=C3=B6=BE=D9=C0=E0=D0=CDCoatType=A1=
=A3<BR><BR>=A1=A1=A1=A1=B5=B1=C0=E0CDog=B4=F2=BF=AA=CA=B1=A3=AC=D1=A1=D4=F1=
"Tools"=B2=CB=B5=A5=D6=D0=B5=C4"Add=20
      =
Procedure"=C3=FC=C1=EE=A3=AC=B5=AF=B3=F6=CF=E0=D3=A6=B5=C4=B6=D4=BB=B0=BF=
=F2=A3=BB<BR><BR>=A1=A1=A1=A1Name=B1=E0=BC=AD=BF=F2=D6=D0=BC=FC=C8=EBCoat=
=A3=BB<BR><BR>=A1=A1=A1=A1=D1=A1=D6=D0"Property"=D1=A1=CF=EE=B0=B4=C5=A5=A3=
=AC=C8=BB=BA=F3=B5=A5=BB=F7[OK]=A1=A3<BR><BR>=A1=A1=A1=A1=CF=B5=CD=B3=D7=D4=
=B6=AF=B2=FA=C9=FA=CF=C2=C1=D0=B4=FA=C2=EB=BF=F2=BC=DC=A3=BA<BR><BR></P>
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bgColor=3D#e6e4dd=20
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          <TD>=A1=A1=A1=A1Public Property Get Coat() As =
Variant<BR><BR>=A1=A1=A1=A1End=20
            Property<BR><BR>=A1=A1=A1=A1Public Property Let Coat(ByVal =
vNewValue As=20
            Variant)<BR><BR>=A1=A1=A1=A1End =
Property</TD></TR></TBODY></TABLE></P>
      <P><SPAN=20
      =
class=3Df14>=A1=A1=A1=A1=B5=AB=CE=D2=C3=C7=D0=E8=D2=AA=B5=C4=C8=B4=B2=BB=CA=
=C7=D5=E2=B8=F6=BF=F2=BC=DC=A1=A3=B4=FA=C2=EB=D6=D0=A3=AC"Variant"=B1=E4=C1=
=BF=C0=E0=D0=CD=CA=C7=C4=DC=BD=D3=CA=D5=BA=CD=B4=A6=C0=ED=C8=CE=BA=CE=C0=E0=
=D0=CD=CA=FD=BE=DD=A1=A3=D4=DA=CE=D2=C3=C7=B6=A8=D2=E5=B5=C4CDog=C0=E0=D6=
=D0=A3=AC=D7=EE=BA=F3=B5=C4=CA=F4=D0=D4=CA=C7Age=A3=AC=CB=FC=D6=BB=C4=DC=BD=
=D3=CA=DC=D5=FB=D0=CD=A1=A3=B5=AB=CF=D6=D4=DA=D0=E8=D2=AA=CA=F4=D0=D4=C4=DC=
=BD=D3=CA=D5CoatType=C1=D0=B1=ED=D6=D0=B5=C4=CA=FD=BE=DD=C0=E0=D0=CD=A3=AC=
=D2=F2=B4=CB=D0=E8=D2=AA=D7=F7=CF=C2=C1=D0=D0=DE=B8=C4=A3=BA<BR><BR>=A1=A1=
=A1=A1=BD=AB=B2=FA=C9=FA=B5=C4=B4=FA=C2=EB=D6=D0=CB=F9=D3=D0=B5=C4"Varian=
t"=B8=C4=B3=C9"CoatType"=A3=BB<BR><BR>=A1=A1=A1=A1=C8=BB=BA=F3=A3=AC=CC=ED=
=BC=D3=D2=BB=D0=A9=CA=B5=BC=CA=B4=A6=C0=ED=CA=F4=D0=D4=B5=C4=B4=FA=C2=EB=A1=
=A3<BR><BR>=A1=A1=A1=A1=D4=DA=CA=F4=D0=D4=B5=C4Get=B9=FD=B3=CC=D6=D0=A3=AC=
=CC=ED=BC=D3=CF=C2=C1=D0=B4=FA=C2=EB=A3=BA<BR><BR></P>
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          <TD>Coat =3D udtCoat </TD></TR></TBODY></TABLE></P>
      =
<P><BR>=A1=A1=A1=A1=D4=DA=CA=F4=D0=D4=B5=C4Let=B9=FD=B3=CC=D6=D0=A3=AC=CC=
=ED=BC=D3=CF=C2=C1=D0=B4=FA=C2=EB=A3=BA<BR><BR></P>
      <P>
      <TABLE borderColor=3D#ffcc66 width=3D"90%" align=3Dcenter =
bgColor=3D#e6e4dd=20
      border=3D1>
        <TBODY>
        <TR>
          <TD>udtCoat =3D vNewValue</TD></TR></TBODY></TABLE></P>
      =
<P>=A1=A1=A1=A1<BR>=A1=A1=A1=A1=C7=D0=BB=BB=B5=BDForm1=A3=BB<BR><BR>=A1=A1=
=A1=A1=BD=ABCommand=B0=B4=C5=A5=B5=C4=B4=FA=C2=EB=B8=C4=CE=AA=A3=BA<BR><B=
R></P>
      <P>
      <TABLE borderColor=3D#ffcc66 width=3D"90%" align=3Dcenter =
bgColor=3D#e6e4dd=20
      border=3D1>
        <TBODY>
        <TR>
          <TD>Dim MyDog As CDog<BR>Set MyDog =3D New CDog<BR>MyDog.Name =
=3D=20
          "Billy"</TD></TR></TBODY></TABLE></P>
      =
<P><BR>=A1=A1=A1=A1=CF=D6=D4=DA=BF=AA=CA=BC=BC=FC=C8=EB=A3=BAMyDog.Coat =
=3D=20
      =
<BR><BR>=A1=A1=A1=A1=C6=E6=BC=A3=B3=F6=CF=D6=C1=CB=A3=AC=B5=B1=C4=E3=C7=C3=
=CF=C2"=3D"=BC=FC=CA=B1=A3=AC=B3=F6=CF=D6=D2=BB=B8=F6=BA=AC=D3=D0=BF=C9=C4=
=DC=D1=A1=CF=EE=B5=C4=C1=D0=B1=ED=A3=AC=B4=D3=D6=D0=CE=D2=C3=C7=BF=C9=D2=D4=
=D1=A1=D4=F1=D2=BB=B8=F6=A1=A3<BR><BR>=A1=A1=A1=A1=CD=EA=B3=C9=B4=FA=C2=EB=
=B5=C4=BC=FC=C8=EB=A3=BAMyDog.Coat=20
      =3D ShortCrewCut=20
      =
<BR><BR>=A1=A1=A1=A1=CF=C2=D2=BB=B2=BD=A3=AC=CE=D2=C3=C7=BD=AB=BB=F1=C8=A1=
Coat=CA=F4=D0=D4=B5=C4=D6=B5=A1=A3=BC=D9=C8=E7=CF=D6=D4=DA=BE=CD=C0=B4=BC=
=F2=B5=A5=B5=D8=D4=DA=CF=FB=CF=A2=B6=D4=BB=B0=BF=F2=D6=D0=CF=D4=CA=BE=CA=F4=
=D0=D4=D6=B5=A3=AC=D4=F2=D6=BB=D0=E8=B7=B5=BB=D8=D1=A1=D4=F1=CF=EE=B5=C4=D6=
=B5=BE=CD=BF=C9=D2=D4=C1=CB=A1=A3=C0=FD=C8=E7=A3=AC=C8=F4=D1=A1=D4=F1=C1=CB=
ShortCrewCut=A3=AC=C6=E4=CA=F4=D0=D4=D2=BB=B6=A8=B7=B5=BB=D82=A1=A3=B2=BB=
=D0=C5=A3=AC=BF=C9=D2=D4=CA=D4=D2=BB=CA=D4=A3=A1<BR><BR>=A1=A1=A1=A1=B5=AB=
=D5=E2=C0=EF=B2=C9=D3=C3=C1=ED=CD=E2=D2=BB=D6=D6=B7=BD=B7=A8=A3=AC=CB=FC=CA=
=C7=D3=C3If-Then=D3=EF=BE=E4=C5=D0=B6=CFCoat=A3=BA<BR><BR>=A1=A1=A1=A1=D4=
=DACommand=B0=B4=C5=A5=D2=D1=D3=D0=B5=C4=B4=FA=C2=EB=BA=F3=C3=E6=CC=ED=BC=
=D3=CF=C2=C1=D0=B4=FA=C2=EB=A3=BA<BR><BR></P>
      <P>
      <TABLE borderColor=3D#ffcc66 width=3D"90%" align=3Dcenter =
bgColor=3D#e6e4dd=20
      border=3D1>
        <TBODY>
        <TR>
          <TD>=A1=A1=A1=A1If MyDog.Coat =3D BigAndShaggy =
Then<BR><BR>=A1=A1=A1=A1=A1=A1MsgBox "You have a=20
            big, bouncy, bushy pup!"<BR><BR>=A1=A1=A1=A1ElseIf =
MyDog.Coat =3D=20
            PoodleStyleAfro Then<BR><BR>=A1=A1=A1=A1=A1=A1MsgBox "Your =
pooch is pretty, petit=20
            and pooch-like!"<BR><BR>=A1=A1=A1=A1ElseIf MyDog.Coat =3D =
ShortCrewCut=20
            Then<BR><BR>=A1=A1=A1=A1=A1=A1MsgBox "Your dog is full of =
oomph, oomph and more=20
            oomph!"<BR><BR>=A1=A1=A1=A1ElseIf MyDog.Coat =3D Unknown =
Then<BR><BR>=A1=A1=A1=A1=A1=A1MsgBox=20
            "I have no idea about your dog. I don't think " &amp;=20
            _<BR><BR>=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1 "you do =
either!"<BR><BR>=A1=A1=A1=A1End=20
      If</TD></TR></TBODY></TABLE></P>
      =
<P><BR>=A1=A1=A1=A1=D5=E2=C0=EF=B5=C4=B4=FA=C2=EB=D6=BB=CA=C7=BC=F2=B5=A5=
=C5=D0=B6=CFCoat=CA=F4=D0=D4=D6=B5=A3=AC=B2=A2=CF=D4=CA=BE=CF=E0=D3=A6=B5=
=C4=CF=FB=CF=A2=B6=D4=BB=B0=BF=F2=A1=A3=B5=B1=C8=BB=A3=AC=D5=E2=C0=EF=D2=B2=
=BF=C9=D2=D4=CA=B9=D3=C3"Select=20
      =