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function ExpCalc(exp: string): string;
var
vScript: Variant;
begin
vScript := CreateOleObject('ScriptControl');
vScript.Language := 'VBScript';
Result := vScript.Eval(exp);
end;
procedure TForm1.Button1Click(Sender: TObject);
var
s:string;
begin
s:=ExpCalc('100 *4.17/0.5*(55.22+22)/3.14');
ShowMessage(s);
end;
 


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Ò»¸ö·½±ãÓÐÓõÄDelphiÊý¾Ý¿â²Ù×÷Àà(ת)

unit MyADO;
interface
uses
SysUtils, Classes,ADODB,DB,Variants,StdCtrls,Dialogs;
type
TMyADO = class(TComponent)
    private
    Connection: TADOConnection;
    Query: TADOQuery;
    Table: TADOTable;
    FConnectio ......
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