让二维条码扫描器具有识别汉字的能力（delphi）

1、将汉字编码：

var
  s: widestring;
  i, j: integer;
  tmpstr: string;
  c2: WideChar;
begin
  for j := 0 to Memo2.lines.count - 1 do
  begin
    tmpstr := '';
    s := Memo2.Lines[j];
    for i := 1 to length(s) do
    begin
      tmpstr := tmpstr + inttostr(ord(s[i])) + ',';       
    end;
  end;
  Memo1.Lines.Add(tmpstr + '#');
end;

2、根据汉字编码生成二维码：

const
  sFileName = 'QRCode.bmp';
var
  oBmp: TBitmap;
begin  
  CreateQRCode(AnsiToUtf8(memo1.Lines.Text), 0, 1, 3);
  if FileExists(sFileName) then
  begin
    oBmp := TBitmap.Create;
    oBmp.LoadFromFile(sFileName);
    image1.Picture.Assign(oBmp);
    FreeAndNil(oBmp);
  end;
end;

　　

　　

3、将编码转换成汉字（解码）

var
  tmplist: TStringList;
  tmpstr: string;
  j, i: Integer;
  c2: WideChar;
begin
  try
    tmplist := TStringList.Create();
    tmpstr := Copy(Self.Edit1.Text, 0, Length(Self.Edit1.Text) - 1);
    tmplist := SplitString(tmpstr, ',');
    for j := 0 to tmplist.Count - 1 do
    begin
      if tmplist[j] <> '' then
      begin
        i := StrToInt(tmplist[j]);
        c2 := widechar(i);
        Memo1.Lines.Add(c2)
      end;
    end;
  finally
    FreeAndNil(tmplist);
  end;
end;

4、用到的splitstring函数：

function SplitString(const Source, ch: string): TStringList;
var
  temp: string;
  i: Integer;
begin
  Result := TStringList.Create;
//如果是空自符串则返回空列表
  if Source = ''
    then exit;
  temp := Source;
  i := pos(ch, Source);
  while i <> 0 do
  begin
    Result.add(copy(temp, 0, i - 1));
    Delete(temp, 1, i);
    i := pos(ch, temp);
  end;
  Result.add(temp);
end;