WinAPI: GetLocalTime、SetLocalTime、SetSystemTime 获取与设置系统时间

//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:

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