反查字符串

{反向查找字符串}
function TForm1.ReversePos(SubStr, S: String): Integer;
var
  TemPos : Integer; //查找到的位置
begin
{把每个字符串都反过来，再pos找地址}
  TemPos := Pos(ReverseString(SubStr), ReverseString(S));
  if TemPos > 0 then
  {得到正序位置}
  TemPos := Length(S) - TemPos - Length(SubStr) + 2;
  Result := TemPos;
end;