//声明GetLocalTime(  var lpSystemTime: TSystemTime {TSystemTime 结构});                              {无返回值}//设置本地时间SetLocalTime(  const lpSystemTime: TSystemTime {TSystemTime 结构}): BOOL;//SetSystemTime 设置的是格林尼治时间SetSystemTime(  const lpSystemTime: TSystemTime {TSystemTime 结构}): BOOL;//TSystemTime 是 _SYSTEMTIME 结构的重定义:_SYSTEMTIME = record  wYear: Word;         {年}  wMonth: Word;        {月}  wDayOfWeek: Word;    {周}  wDay: Word;          {日}  wHour: Word;         {时}  wMinute: Word;       {分}  wSecond: Word;       {秒}  wMilliseconds: Word; {毫秒}end;         //举例:procedure TForm1.FormCreate(Sender: TObject);var  T: TSystemTime;begin  GetSystemTime(T);  Memo1.Clear;  with Memo1.Lines do  begin    add(Format('年: %d',[T.wYear]));    add(Format('月: %d',[T.wMonth]));    add(Format('周: %d',[T.wDayOfWeek]));    add(Format('日: %d',[T.wDay]));    add(Format('时: %d',[T.wHour]));    add(Format('分: %d',[T.wMinute]));    add(Format('秒: %d',[T.wSecond]));    add(Format('毫秒: %d',[T.wMilliseconds]));  end;end;         //效果图: