有下面一个类
TSMObject = class
public
procedure SaveToDB( Conn: TCustomConnection ); virtual; abstract;
procedure LoadFromDB( Conn: TCustomConnection ); virtual; abstract;
end; TRemoteControl = class( TSMObject ) { TODO : 远程遥控 }
private
FCrossID : Integer;
FButtonID : Integer;
FStageCode : Integer;
FTransmitType: Integer;
public
constructor Create();
procedure SaveToDB( Conn: TCustomConnection ); virtual;
procedure LoadFromDB( Conn: TCustomConnection ); virtual;
property CrossID : integer read FCrossID write FCrossID;
property ButtonID : integer read FButtonID write FButtonID;
property StageCode : integer read FStageCode write FStageCode;
property TransmitType : integer read FTransmitType write FTransmitType;
end;这个类每次调用SaveToDB一次只能插入一条数据,现在我想一次插入N条数据,我该怎么改这个类?
TSMObject = class
public
procedure SaveToDB( Conn: TCustomConnection ); virtual; abstract;
procedure LoadFromDB( Conn: TCustomConnection ); virtual; abstract;
end; TRemoteControl = class( TSMObject ) { TODO : 远程遥控 }
private
FCrossID : Integer;
FButtonID : Integer;
FStageCode : Integer;
FTransmitType: Integer;
public
constructor Create();
procedure SaveToDB( Conn: TCustomConnection ); virtual;
procedure LoadFromDB( Conn: TCustomConnection ); virtual;
property CrossID : integer read FCrossID write FCrossID;
property ButtonID : integer read FButtonID write FButtonID;
property StageCode : integer read FStageCode write FStageCode;
property TransmitType : integer read FTransmitType write FTransmitType;
end;这个类每次调用SaveToDB一次只能插入一条数据,现在我想一次插入N条数据,我该怎么改这个类?
TValue = class
public
FCrossID : Integer;
FButtonID : Integer;
FStageCode : Integer;
FTransmitType: Integer;
end;
再用List把所有内容写在List里面,就可以了...
procedure SaveToDB(fList: TList; Conn: TCustomConnection ); virtual;
begin
for i:=0 to fList.Count -1 do
begin
//dosomething......
end;
end;
这样的话FList就成为外部参数接口了吧?一般来说是不是Tlist类型不传到类的外面去呢?
要么用指针,带上指针后面数据的长度,