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vb µ÷ÓÃdelphiдµÄdll

delphiÖеÄDLLÖеÄÉùÃ÷Ô­ÂëÈçÏ£º
ÕâÀïÉùÃ÷ÁËÊä³öÐÔ²ÎÊý·Ö±ðΪÊý×ÖÓë×Ö·ûÀàÐÍ
library dll1;
uses
  SysUtils,
  Classes;
{$R *.res}
Function mymax(x, y: Integer; out jj: Integer; out abc: PChar): Integer; stdcall;
begin
  jj := x * y;
  abc := PChar(StrPas(abc) + 'ÕâÊÇ´«³öµÄ');
  if X > Y then
    Result := X
  else
    Result := Y;
end;
exports mymax;
begin
end.
vbÖеĵ÷ÓóÌÐòÈçÏ£º
Private Declare Function mymax Lib "C:\lx\delphi\lx1\dll1.dll" (ByVal sj1 As Long, ByVal sj2 As Long, ByRef sj3 As Long, ByRef s1 As String) As Long
Private Sub Command1_Click()
 Dim s_t As String
 
  Text3.Text = ""
  sj3_v = 0
  s_t = "²âÊÔÊäÈ룺"
  Text3.Text = mymax(Val(Text2.Text), Val(Text1.Text), sj3_v, s_t)
 
  Print (Str(sj3_v) + s_t)
End Sub ......

vb µ÷ÓÃdelphiдµÄdll

delphiÖеÄDLLÖеÄÉùÃ÷Ô­ÂëÈçÏ£º
ÕâÀïÉùÃ÷ÁËÊä³öÐÔ²ÎÊý·Ö±ðΪÊý×ÖÓë×Ö·ûÀàÐÍ
library dll1;
uses
  SysUtils,
  Classes;
{$R *.res}
Function mymax(x, y: Integer; out jj: Integer; out abc: PChar): Integer; stdcall;
begin
  jj := x * y;
  abc := PChar(StrPas(abc) + 'ÕâÊÇ´«³öµÄ');
  if X > Y then
    Result := X
  else
    Result := Y;
end;
exports mymax;
begin
end.
vbÖеĵ÷ÓóÌÐòÈçÏ£º
Private Declare Function mymax Lib "C:\lx\delphi\lx1\dll1.dll" (ByVal sj1 As Long, ByVal sj2 As Long, ByRef sj3 As Long, ByRef s1 As String) As Long
Private Sub Command1_Click()
 Dim s_t As String
 
  Text3.Text = ""
  sj3_v = 0
  s_t = "²âÊÔÊäÈ룺"
  Text3.Text = mymax(Val(Text2.Text), Val(Text1.Text), sj3_v, s_t)
 
  Print (Str(sj3_v) + s_t)
End Sub ......

VBÔËÐÐDOSÃüÁîÉú³ÉÎı¾Îļþ²¢´ò¿ª´¦ÀíµÄÎÊÌâ

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Shell "cmd  /c dir /s /b e:\ dir.txt"
Open "dir.txt" For Input As #1
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¡¡¡¡SQLDMO£¨SQL Distributed Management Objects£¬SQL·Ö²¼Ê½¹ÜÀí¶ÔÏ󣩷â×° Microsoft SQL Server 2000 Êý¾Ý¿âÖеĶÔÏó¡£SQL-DMO ÔÊÐíÓÃÖ§³Ö×Ô¶¯»¯»ò COM µÄÓïÑÔ±àдӦÓóÌÐò£¬ÒÔ¹ÜÀí SQL Server °²×°µÄËùÓв¿·Ö¡£ SQL-DMO ÊÇ SQL Server 2000 ÖÐµÄ SQL Server ÆóÒµ¹ÜÀíÆ÷ËùʹÓõÄÓ¦ÓóÌÐò½Ó¿Ú (API);Òò´ËʹÓà SQL-DMO µÄÓ¦ÓóÌÐò¿ÉÒÔÖ´ÐÐ SQL Server ÆóÒµ¹ÜÀíÆ÷Ö´ÐеÄËùÓй¦ÄÜ¡£
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¡¡¡¡1. ·â×° SQL Server ×÷Ϊ×Ô¼ºµÄÊý¾Ý´æ´¢²¢Ï뾡Á¿¼õÉÙÓû§µÄ SQL Server ¹ÜÀíÈÎÎñµÄÓ¦ÓóÌÐò¡£
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¡¡¡¡3. ÏëÔÚ×Ô¼ºµÄÓû§½çÃæÖм¯³É SQL Server ¹ÜÀíÈÎÎñµÄÓ¦ÓóÌÐò¡£
¡¡¡¡SQLDMO¶ÔÏóÀ´×ÔSQLDMO.dll£¬SQLDMO.dllÊÇËæSQL Server2000Ò»Æð·¢²¼µÄ¡£SQLDMO.dll×ÔÉíÊÇÒ»¸öCOM¶ÔÏó£¬Òò´Ë£¬ÔÚÄãµÄ.NETÏîÄ¿Àï±ØÐëÏÈÒýÓÃËü¡£
¡¡¡¡µÃµ½ÍøÂçÖеÄSQL·þÎñÆ÷µÄÁÐ±í£º
'µÃµ½SQL·þÎñÆ÷µÄÁбí
'±ØÐë°²×°SQL SERVER 2000 SP2 ¼°ÒÔÉÏ°æ±¾
Dim I As Short
Dim sqlApp As New SQLDMO.Application()
Dim ServerName As SQLDMO.NameList
ServerName = sqlApp.ListAvaila ......

vb Á¬½ÓAccess×Ö·û´®¡¢vbÁ¬½ÓDb2µÄ×Ö·û´®

DB2ConnectionString
b2str = "Provider=MSDASQL.1;Password=a$sk6G7;Persist Security Info=True;User ID=DBA;Data Source=ConDB2SFXXK"
AccessConnectonString
accessstr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\DMSJK.mdb;Jet OLEDB:database password=" ......

vb Á¬½ÓAccess×Ö·û´®¡¢vbÁ¬½ÓDb2µÄ×Ö·û´®

DB2ConnectionString
b2str = "Provider=MSDASQL.1;Password=a$sk6G7;Persist Security Info=True;User ID=DBA;Data Source=ConDB2SFXXK"
AccessConnectonString
accessstr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\DMSJK.mdb;Jet OLEDB:database password=" ......

VB StrConvº¯Êý

StrConvº¯Êý
·µ»Ø°´Ö¸¶¨ÀàÐÍת»»µÄ Variant (String)¡£
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StrConv(string, conversion, LCID)
StrConv º¯ÊýµÄÓï·¨ÓÐÏÂÃæµÄÃüÃû²ÎÊý£º
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string
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conversion
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LCID
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vbUpperCase
1
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vbLowerCase
2
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vbProperCase
3
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vbWide*
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vbNarrow*
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vbKatakana**
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vbHiragana**
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vbUnicode
64
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vbfromUnicode
128
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