正则表达式

Regex rg = new Regex(@"[0-9]室[0-9]厅|[0-9]居室");
string sOriRoomType = rg.Match(sTitle).Value;

Regex rgm = new Regex(@"[0-9]+平米");
string sArea = rgm.Match(sTitle).Value.Replace("平米","");

Regex rgroom = new Regex(@"[0-9]室|[0-9]居室");
string sRoom = rgroom.Match(sOriRoomType).Value.Replace("居室", "").Replace("室", "");

Regex rgHall = new Regex(@"[0-9]厅");