and then execute the statement. On the network to collect some information, and then write a line to read TXT text file program, here and share with you. Procedure TForm1.Button1Click (Sender: TObject); Var The definition of textfile data type in fi:TextFile; //system unit A1:string;...
Onthenetworktocollectsomeinformation,andthenwritea linetoreadTXTtextfileprogram,hereandsharewithyou. ProcedureTForm1.Button1Click(Sender:TObject); Var Thedefinitionoftextfiledatatypeinfi:TextFile;//system unit A1:string; I:integer; Strsql:string; ...
(first write file) Procedure TForm1.Button2Click (Sender: TObject); Var S: string; Begin AssignFile (F, FileName); Reset (F); / / open read only Readln (F, s); / / read ShowMessage (s); / / display: the first line Readln (F, s); / / continue to read ShowMessage (s); ...
最好是直接用文件操作函数写入。给你写了个函数：procedure WriteTextFile(const TextFileName:String;content:TStrings);var txtfile:TextFile;i:Integer;beginif (content=nil) or (content.Count=0) then exit;AssignFile(txtfile,TextFileName);tryif FileExists(TextFileName) thenappend(txtfile)e...
原型:procedure ReadLn([ var F: Text; ] V1 [, V2, ...,Vn ]); V:文本文件变量。 V1……V2:用于存储读取的文本。 注意:在Delphi中,ReadLn过程用于读取文本文件的一行文本,并跳至该文本文件的下一行。 1.9、Write过程 作用:用于向一个文本文件写入数据。
Memo1.Lines.LoadFromFile ( TextFileName ) ; 这样在TMemo上所做的一切修改当调用Memo部件的SaveToFile方法后都会反映到文件中去。 1.2 记录文件 记录文件是一种操作更为灵活的文件类型。它允许同时为读和写打开,而且由于记录文件中每条记录的长度固定,所以可随机存取。
stu.sName:=edt2.Text; Write(f,stu);finallyCloseFile(f);end;end;//记录类型文件 读procedureTForm1.btn3Click(Sender: TObject);typestudent=recordsNo:string[10]; sName:string[10];end;varf:Fileofstudent; stu:student; isize:Integer;beginAssignFile(f,'a.dat');tryifnotFileExists('a.dat')the...
1，关联文件：AssignFile(pMyFile,'c:\ttt.csv'); 2，打开文件：Reset(pMyFile); 3，读取一行：Readln(pMyFile,pStr); 4，关闭文件：CloseFile(pMyFile); 示例： procedureTForm1.Button1Click(Sender:TObject); var pMyFile:textfile; pStr:string; begin ifOpenDialog1.Executethenbegin Assignfile(pMy...
procedure TForm1.Button1Click(Sender: TObject);var s:TStringList; i,j:Integer; str1,str2:string;begin OpenDialog1.Execute; s:=TStringList.Create; s.Text:=Memo1.Text; //先给s值， str1:='插入值'; //我这里在有#号的位置的前面写上“插入值” str2:=s.Tex...
procedurecpWriteLog(pFObject:string;pTxt:string;pMode:byte); var pMyFile:textFile; begin ifx_pLogFlag='N'thenexit; try Assign); ifpMode=1thenpTxt:=DateTimeToStr(Now)+''+pTxt; ifx_pFindLogthen append(pMyFile) elsebegin if(pFObject)then append(pMyFile) else reWrite(pMyFile); x_...