          class="fa fa-fw fa-lg fa-search"></i>搜索
                            </button>
                            <button class="btn btn-primary" type="button" id="online_search"><i
                                    class="fa fa-fw fa-lg fa-search"></i>在线查询
                            </button>
                            <div class="btn-group" role="group">
                                <button id="btnGroupDrop1" type="button" class="btn btn-secondary dropdown-toggle"
                    