TextFile读写

function readFromFile:string;
var s,s2:string; F:TextFile;
begin
OpenDialog1.FileName:='''''''';
OpenDialog1.Filter:=''''*.XML|*.xml'''';
s:=''''''''; result:='''''''';
if not OpenDialog1.Execute then exit;

assignfile(F,OpenDialog1.FileName);
try
Reset(F);
while not Eof(F) do
begin
Readln(F, s2);
s:=s s2;
end;
result:=s;
finally
closefile(f);
end;
end;

procedure writeToFile(s:string);
var F:TextFile;
begin
assignfile(f,SaveDialog1.fileName);
try
rewrite(f);
writeln(f,s1);
finally
closefile(f);
end;
end;

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