function HexToInt(hex : STRING) : INTEGER; //十六进制转十进制函数 var i : INTEGER; res: INTEGER;begin hex := UpperCase(hex); res := 0; // B:=Length(hex); for i:=1 to Length(hex) do begin if (hex[i]>='0') and (hex[i]<='9') then res := res * 16 + Ord(hex[i]) - Ord('0') else if (hex[i]>='A') and (hex[i]<='F') then res := res * 16 + Ord(hex[i]) - Ord('A') + 10 else begin HexToInt := 0; Exit; end; end; HexToInt := res; end;
var s:String;a:Double;i:Integer; begin s :='$'+trim(Edit1.Text); val(s,a,i); Label1.Caption :=FloatToStr(a); end;
var
i : INTEGER;
res: INTEGER;begin
hex := UpperCase(hex);
res := 0;
// B:=Length(hex);
for i:=1 to Length(hex) do
begin
if (hex[i]>='0') and (hex[i]<='9')
then
res := res * 16 + Ord(hex[i]) - Ord('0')
else
if (hex[i]>='A') and (hex[i]<='F')
then
res := res * 16 + Ord(hex[i]) - Ord('A') + 10
else
begin
HexToInt := 0;
Exit;
end;
end;
HexToInt := res;
end;
begin
s :='$'+trim(Edit1.Text);
val(s,a,i);
Label1.Caption :=FloatToStr(a);
end;