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var
s:string;
p:pchar;
a:array[1..20] of char;
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1¡¢×Ö·û´®µ½PChar
p:=PChar(s);
2¡¢PCharµ½×Ö·û´®
s:=p;
3¡¢PCharµ½×Ö·ûÊý×é
StrCopy(@a,p);
4¡¢×Ö·ûÊý×éµ½PChar
PChar(@a);
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procedure TForm1.btn1Click(Sender: TObject);
var
str:array[1..10] of char;
begin
StrCopy(@str,PChar(mmo1.Text));
mmo2.Text:=PChar(@str);
end; ......
delphiÖÐapplication.processmessagesµÄ×÷ÓÃ
procedure TForm1.Button2Click(Sender: TObject);
var
I, J, X, Y: Word;
begin
I := 0;
J := 0;
while I < 64000 do
begin
Randomize;
while J < 64000 do
begin
Y := Random(J);
Inc(J);
Application.ProcessMessages;
end;
X := Random(I);
Inc(I);
end;
Canvas.TextOut(10, 10, 'The Button2Click handler is finished');
end;
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1) DelphiÏòoracleÖд«µÝ²ÎÊý ÈçoracleÖеIJÎÊýÃûΪerpcx
´ð£ºÈç¹ûÏë´Ó±íÀïȡֵµ½oracle£¬Ôòerpcx:=trim(aq1.fieldbyname('erpcx').AsString);
·ñÔòÖ±½ÓÓÿؼþÃû×Ö
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with aperp do
begin
connection:=dm.ADOCerp;
parameters.Clear;
procedurename:='pc_erpbominquery';
parameters.CreateParameter(erpcx,ftstring,pdinput,60,erpcx); ´Ë¾äΪ´«²ÎÊýÓï¾ä
·ñÔòÖ±½ÓÓÃ Parameters.CreateParameter('@erpcx',ftString,pdInput,100,edit5.text);
ExecProc;
end;
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1) DelphiÏòoracleÖд«µÝ²ÎÊý ÈçoracleÖеIJÎÊýÃûΪerpcx
´ð£ºÈç¹ûÏë´Ó±íÀïȡֵµ½oracle£¬Ôòerpcx:=trim(aq1.fieldbyname('erpcx').AsString);
·ñÔòÖ±½ÓÓÿؼþÃû×Ö
Óï¾äΪ
with aperp do
begin
connection:=dm.ADOCerp;
parameters.Clear;
procedurename:='pc_erpbominquery';
parameters.CreateParameter(erpcx,ftstring,pdinput,60,erpcx); ´Ë¾äΪ´«²ÎÊýÓï¾ä
·ñÔòÖ±½ÓÓÃ Parameters.CreateParameter('@erpcx',ftString,pdInput,100,edit5.text);
ExecProc;
end;
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3)sqlÁ¬½Óͬһ·þÎñÆ÷µÄ²»Í¬±íµÄÊý¾Ý
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1) DelphiÏòoracleÖд«µÝ²ÎÊý ÈçoracleÖеIJÎÊýÃûΪerpcx
´ð£ºÈç¹ûÏë´Ó±íÀïȡֵµ½oracle£¬Ôòerpcx:=trim(aq1.fieldbyname('erpcx').AsString);
·ñÔòÖ±½ÓÓÿؼþÃû×Ö
Óï¾äΪ
with aperp do
begin
connection:=dm.ADOCerp;
parameters.Clear;
procedurename:='pc_erpbominquery';
parameters.CreateParameter(erpcx,ftstring,pdinput,60,erpcx); ´Ë¾äΪ´«²ÎÊýÓï¾ä
·ñÔòÖ±½ÓÓÃ Parameters.CreateParameter('@erpcx',ftString,pdInput,100,edit5.text);
ExecProc;
end;
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