function MyRound(P: Double; Decimals: integer): Double;
var
s: string;
begin
s := FloatToStrF(P, ffFixed, 15, Decimals);
Result := StrToFloat(s);
end;function IntDate(T: TDateTime): Integer;
var
Year, Month, Day: Word;
begin
DecodeDate(T, Year, Month, Day);
Result := Year * 10000 + Month * 100 + Day;
end;
var
s: string;
begin
s := FloatToStrF(P, ffFixed, 15, Decimals);
Result := StrToFloat(s);
end;function IntDate(T: TDateTime): Integer;
var
Year, Month, Day: Word;
begin
DecodeDate(T, Year, Month, Day);
Result := Year * 10000 + Month * 100 + Day;
end;
//p 原始浮点数
//Decimals有效小数位
//比如 MyRound(20.3201734,4);
//返回的值为20.3202。
function MyRound(P: Double; Decimals: integer): Double;
var
s: string;
begin
s := FloatToStrF(P, ffFixed, 15, Decimals);
Result := StrToFloat(s);
end;
//其它他的功能很简单只是把年月日这三个无素,组合成一个integer数字
//如传入2011/12/2 而返回的是20111202
//它的功能和_IntDate函数一样。
function IntDate(T: TDateTime): Integer;
var
Year, Month, Day: Word;
begin
DecodeDate(T, Year, Month, Day);
Result := Year * 10000 + Month * 100 + Day;
end;function _IntDate(T:TDateTime):Integer;
var
s:string;
begin
s := FormatDateTime('yyyymmdd',t);
Result := StrToInt(s);
end;