procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char); begin if key in ['0'..'9','.',#8] then begin key:=#0; Messagebeep(0); end; end;
procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char); begin if not ((ord(key) > 128) or (key = #8)) then begin key:=#0; end; end;
試試﹕ procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char); begin if byteType(String(Key),1)<>mbLeadByte then Key:=#0; end;
就是这个 procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char); begin if not ((ord(key) > 128) or (key = #8)) then begin key:=#0; end; end;由于汉字的一半的asc值>128.
就是这个 procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char); begin if not ((ord(key) > 128) or (key = #8)) then begin key:=#0; end; end;由于汉字的一半的asc值>128.
procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char); begin if not ((ord(key) > 128) or (key = #8)) then begin key:=#0; end; end;
begin
if key in ['0'..'9','.',#8] then
begin
key:=#0;
Messagebeep(0);
end;
end;
begin
if not ((ord(key) > 128) or (key = #8)) then
begin
key:=#0;
end;
end;
procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
if byteType(String(Key),1)<>mbLeadByte then
Key:=#0;
end;
procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
if not ((ord(key) > 128) or (key = #8)) then
begin
key:=#0;
end;
end;由于汉字的一半的asc值>128.
procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
if not ((ord(key) > 128) or (key = #8)) then
begin
key:=#0;
end;
end;由于汉字的一半的asc值>128.
begin
if not ((ord(key) > 128) or (key = #8)) then
begin
key:=#0;
end;
end;