sum:=0;
for I :=0 to 窗口名.commponentcount-1 do
begin
if 窗口名.commponents[I] is TEdit then
begin
if length(TEdit(窗口名.commponents[I]).text)>0 then
try
sum:=sum+strtofloat(TEdit(窗口名.commponents[I]).text);
except
continue;
end;
end;
for I :=0 to 窗口名.commponentcount-1 do
begin
if 窗口名.commponents[I] is TEdit then
begin
if length(TEdit(窗口名.commponents[I]).text)>0 then
try
sum:=sum+strtofloat(TEdit(窗口名.commponents[I]).text);
except
continue;
end;
end;
function TForm1.MyStr:String;
var ii: Integer;
begin
Result := '';
for ii := 0 to Form1.ControlCount - 1 do
if (Form1.Controls[ii] is TEdit) then
Result := Result + TEdit(Form1.Controls[ii]).Text;
end;
Temp: TComponent;
x:integer;
begin
x:=0;
for I := ComponentCount - 1 downto 0 do
begin
Temp := Components[I];
if (Temp is TEDit) then
begin
x:=x+strtoint(temp.text);
end;
end;end;
var
I: Integer;
begin
Result := 0;
for I := 0 to mOwner.ComponentCount - 1 do
if mOwner.Components[I] is TEdit then
Result := Result + StrToFloatDef(TEdit(mOwner.Components[I]).Text, 0);
end;procedure TForm1.Button1Click(Sender: TObject);
begin
Caption := Format('%f', [CalcEditSum(Self)]);
end;
1,2。3求值。而对于另外一个我要对1,2求值,这样子好实现吗?
edit4.tag:=2;edit5.tag:=3
然后对tag值相等的进行统计
if components[i] is TEdit then
//你的操作