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...
9、Delete(str,m,n) :在字符串str中删除从第m个字符开始长度为n的子字符串,没有返回值 10、Insert(str1,str,k):将字符串str1插入到字符串str的第k个位置处,没有返回值; 11、IntToStr(m):string; StrToInt(s):Integer; FloatToStr(f):string; StrToFloat(s):Extended; 12、if语句: //1、单分支语...
首部function FloatToStrF(Value: Extended; Format: TFloatFormat; Precision, Digits: Integer): string; $[SysUtils.pas 功能 返回浮点数以指定格式转换成字符串 说明Precision指定精度;Digits指定小数宽度 参考function SysUtils.FloatToText 例子 ///Begin FloatToStrF procedure TForm1.Button1Click(Sender: TObject)...
var a,b,c,s,area,real,str1:real; //这里要改 begin a:=strtofloat(Edit1.Text);b:=strtofloat(Edit2.Text);c:=strtofloat(Edit3.Text);s:=(a+b+c)/2;area:=sqrt(s*(s-a)*(s-b)*(s-c));str(area:8:3,str1);showmessage('面积为：'+floattostr(str1));//这里要改...
用format 函数也行，function FormatCurr(const Format: string; Value: Currency): string; //转整形 function FormatFloat(const Format: string; Value: Extended): string;//浮点型的
vtAnsiString: OrigNum:= OrigNum+String(VAnsiString); vtInteger: OrigNum:=OrigNum+IntToStr(VInteger); vtBoolean: OrigNum := OrigNum + BoolToStr(VBoolean); vtChar: OrigNum := OrigNum + VChar; vtExtended: OrigNum := OrigNum + FloatToStr(VExtended^); ...
vtAnsiString: OrigNum:= OrigNum+String(VAnsiString); vtInteger: OrigNum:=OrigNum+IntToStr(VInteger); vtBoolean: OrigNum := OrigNum + BoolToStr(VBoolean); vtChar: OrigNum := OrigNum + VChar; vtExtended: OrigNum := OrigNum + FloatToStr(VExtended^); ...
S: string;begin R := Sin(Pi); Str(R:5:3, S); Canvas.TextOut(10, 10, 'The Sin of Pi is ' + S);end;---Unit System函数原型 function ArcTan(X: Extended): Extended;函数原型 function Cos(X: Extended): Extended;函数原型 function...
REAL属性<NAME>必须为Single, Double或Extended Re-raising an exception only allowed in exception handler 在意外处理中只允许重新引起意外处理Read error on <Filename> 文件<FILENAME>读出错Record, object or class type required 需要记录,对象或类类型Redeclaration of ’<name>’ hides a member in the ...
Extended String Property Editor delphipascallibrarydelphi-ideide-helperide-plugin UpdatedJun 7, 2022 Pascal Delphi7 style, Windows Java SWT based Component Library and Eclipse Development Plug-in javadelphiscreenshoteclipseeclipse-pluginswtdelphi-idejava-swtdelphi7-stylejava-ideeclipse-development-plugin ...