var S: string; T: string; I: Integer; J: Integer; begin Randomize; S := 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; T := ''; for I := 1 to Trunc(Length(S) * 0.1) do begin J := 1 + Random(Length(S)); //得到源字符串随机位置 T := T + S[J]; //将这个位置的字符串追加到结果中 Delete(S, J, 1); //删除源字符串该位置的字符 end; Caption := T; //输出结果 end;
//如果按照你提供的格式,处理方法是一样的 var vSource: TStringList; vDest: TStringList; I: Integer; J: Integer; begin Randomize; vSource := TStringList.Create; vDest := TStringList.Create; vDest.Delimiter := '#'; vSource.Delimiter := '#'; vSource.DelimitedText := '5518001,0.01,0#5518020,0.13,1#123456,5.35,0#5518001,0.03,0#5518001,0.04,0#5518001,0.05,0#5518001,0.07,0#5518001,0.06,0#5518001,0.01,0#5518020,0.13,1#123456,5.35,0#5518001,0.03,0#5518001,0.04,0#5518001,0.05,0#5518001,0.07,0#5518001,0.06,0#'; vDest.Clear; for I := 1 to Trunc(vSource.Count * 0.1) do begin J := Random(vSource.Count); //得到源字符串随机位置 vDest.Add(vSource[J]); //将这个位置的字符串追加到结果中 vSource.Delete(J); //删除源字符串该位置的字符 end; Caption := vDest.DelimitedText; //输出结果 vSource.Free; vDest.Free; end;
S: string;
T: string;
I: Integer;
J: Integer;
begin
Randomize;
S := 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
T := '';
for I := 1 to Trunc(Length(S) * 0.1) do
begin
J := 1 + Random(Length(S)); //得到源字符串随机位置
T := T + S[J]; //将这个位置的字符串追加到结果中
Delete(S, J, 1); //删除源字符串该位置的字符
end;
Caption := T; //输出结果
end;
var
vSource: TStringList;
vDest: TStringList;
I: Integer;
J: Integer;
begin
Randomize; vSource := TStringList.Create;
vDest := TStringList.Create;
vDest.Delimiter := '#';
vSource.Delimiter := '#';
vSource.DelimitedText :=
'5518001,0.01,0#5518020,0.13,1#123456,5.35,0#5518001,0.03,0#5518001,0.04,0#5518001,0.05,0#5518001,0.07,0#5518001,0.06,0#5518001,0.01,0#5518020,0.13,1#123456,5.35,0#5518001,0.03,0#5518001,0.04,0#5518001,0.05,0#5518001,0.07,0#5518001,0.06,0#';
vDest.Clear;
for I := 1 to Trunc(vSource.Count * 0.1) do
begin
J := Random(vSource.Count); //得到源字符串随机位置
vDest.Add(vSource[J]); //将这个位置的字符串追加到结果中
vSource.Delete(J); //删除源字符串该位置的字符
end;
Caption := vDest.DelimitedText; //输出结果
vSource.Free;
vDest.Free;
end;