FloatToText 函数 将给定的浮点数转换为十进制数 FloatToTextFmt 函数 将给定的浮点数转换为十进制数 IntToHex 将整型数转换为十六进制数 IntToStr 将整型数转换为字符串 StringToWideChar 函数 将ANSI字符串转换为UNICODE字符串 StrToDate 函数 将字符串转换为日期格式 StrToDateTime 函数 将字符串转换为日期/时间...
类型转换: functionToBoolean: Boolean;functionToInteger: Integer;functionToSingle: Single;functionToDouble: Double;functionToExtended: Extended;classfunctionToBoolean(constS:string): Boolean;classfunctionToInteger(constS:string): Integer;classfunctionToSingle(constS:string): Single;classfunctionToDouble(constS:...
class function Compare(const StrA: string; IndexA: Integer; const StrB: string; IndexB: Integer; Length: Integer; IgnoreCase: Boolean): Integer; class function Compare(const StrA: string; IndexA: Integer; const StrB: string; IndexB: Integer; Length: Integer; IgnoreCase: Boolean; LocaleID: T...
floattodecimal (var result:Tfloatrec;value:extended;precision,decimals: integer); 将浮点数转换成十进制表示 floattostr (value:extended):string 将浮点数value转换成字符串格式,该转换使用普通数字格式,转换的有效位数为15位。 floattotext (buffer:pchar;value:extended; format:Tfloatformat;precision, digits...
首部function StrToFloat(const S: string): Extended; $[SysUtils.pas 功能 返回字符串S转换成浮点数 说明 字符串非浮点数表达时将引起异常 参考function SysUtils.TextToFloat 例子var E: Extended; begin E := StrToFloat(Edit1.Text); end; ━━━ 首部function StrToFloatDef(const S: string...
vtAnsiString: OrigNum:= OrigNum+String(VAnsiString); vtInteger: OrigNum:=OrigNum+IntToStr(VInteger); vtBoolean: OrigNum := OrigNum + BoolToStr(VBoolean); vtChar: OrigNum := OrigNum + VChar; vtExtended: OrigNum := OrigNum + FloatToStr(VExtended^); ...
分别用 Constructor、 Destructor、 Procedure、Function这4个保留字声明,类类型中的特性用保留字Property来声明,一个典型的类类型 示例如下: Type TClass=Class Private FX,FY,FZ:Integer; FS:String[128]; Public Constructor Create(X,Y,Z:Integer;S:string); Destrutor Destroy;override; Procedure Display;...
Edit2.Text := DateTimeToStr(FileDateToDateTime(SpinEdit1.Value)); FileClose(I); end; ///End FileGetDate ━━━ 首部function FileSetDate(const FileName: string; Age: Integer): Integer; overload; $[SysUtils.pas 首部function FileSetDate(Handle: Integer; Age: ...
The calculation of the list of the constructors of the base classes, which can be accessed also in the derived class, was improved. Previously also equally named overwritten constructors were added to the list. From now on, this only happens if the extended RTTI abilities are enabled, to us...
RoundTo(1.235, -2) 1.24 RoundTo(1.245, -2) 1.24 如果要使用传统的"四舍五入"方法，可以使用下面函数：function RoundEx(R: Real): Int64;begin Result:= Trunc(R);if Frac(R) >= 0.5 then Result:= Result + 1;end;function DRound(const Value: Extended; const Digit: ...