queueHandle.js

        function queueHandle(srcarr, distarr, handler) {
          if (srcarr.length) {
            var m = members.shift();
            util.reqUserInfo(m.member, function (userinfo) {
              userinfo.IsLock = true;
              distarr.push(userinfo);
              queueHandle(srcarr, distarr, handler);
            })
          } else {
            handler(selected);
          }
        }