控件类型 属性名称 属性值
Edit Name Search
ListBox Name SourceList
Items 输入一些字符串,如姓名等,用于提供检索数据
ListBox Name ResultList
---- 3.键入以下两个函数
// 获取指定汉字的拼音索引字母,如:“汉”的索引字母是“H”
function GetPYIndexChar( hzchar:string):char;
begin
case WORD(hzchar[1]) shl 8 + WORD(hzchar[2]) of
$B0A1..$B0C4 : result := 'A';
$B0C5..$B2C0 : result := 'B';
$B2C1..$B4ED : result := 'C';
$B4EE..$B6E9 : result := 'D';
$B6EA..$B7A1 : result := 'E';
$B7A2..$B8C0 : result := 'F';
$B8C1..$B9FD : result := 'G';
$B9FE..$BBF6 : result := 'H';
$BBF7..$BFA5 : result := 'J';
$BFA6..$C0AB : result := 'K';
$C0AC..$C2E7 : result := 'L';
$C2E8..$C4C2 : result := 'M';
$C4C3..$C5B5 : result := 'N';
$C5B6..$C5BD : result := 'O';
$C5BE..$C6D9 : result := 'P';
$C6DA..$C8BA : result := 'Q';
$C8BB..$C8F5 : result := 'R';
$C8F6..$CBF9 : result := 'S';
$CBFA..$CDD9 : result := 'T';
$CDDA..$CEF3 : result := 'W';
$CEF4..$D188 : result := 'X';
$D1B9..$D4D0 : result := 'Y';
$D4D1..$D7F9 : result := 'Z';
else
result := char(0);
end;
end;
// 在指定的字符串列表SourceStrs中检索符合拼音索引字符串
PYIndexStr的所有字符串,并返回。
function SearchByPYIndexStr
( SourceStrs:TStrings;
PYIndexStr:string):string;
label NotFound;
var
i, j :integer;
hzchar :string;
begin
for i:=0 to SourceStrs.Count-1 do
begin
for j:=1 to Length(PYIndexStr) do
begin
hzchar:=SourceStrs[2*j-1]
+ SourceStrs[2*j];
if (PYIndexStr[j]<>'?') and
(UpperCase(PYIndexStr[j]) <>
GetPYIndexChar(hzchar)) then goto NotFound;
end;
if result='' then result := SourceStrs
else result := result + Char
(13) + SourceStrs;
NotFound:
end;
end;
4.增加编辑框Search的OnChange事件:
procedure TForm1.SearchChange(Sender: TObject);
var ResultStr:string;
begin
ResultStr:='';
ResultList.Items.Text := SearchByPYIndexStr
(Sourcelist.Items, Search.Text);
end;