var
f:TextFile;
FileName,str;String;
begin
FileName:='e:/tmp/test';
Str:='This is a test';
if not fileExits(fileName) then
begin
filecreate(FileName);
end;
//写入数据
AssignFile(f,FileNme);
ReWrite(f);
For i:=0 to 10 do
begin
writeln(f,Str);
Str:=Str+' test';
end;
end;