public string GetUserLoves( ) { StringBuilder msg = new StringBuilder( ); IList <UserInfo> users = accountFacade.GetUserInfoOrderByLoves( ); if (users == null) { return("{}"); } msg.Append("["); foreach (UserInfo user in users) { msg.Append("{userName:'******',loves:'" + user.LoveLiness + "'},"); } msg.Remove(msg.Length - 1, 1); msg.Append("]"); return(msg.ToString( )); }