form-group">
                <label class="col-sm-2 control-label">工程项目:</label>
                <div class="col-sm-10">
                    <div class="btn-group  col-xs-12" style="padding: 0 0;">
                    
                                    <button class="btn btn-default" ng-click="showAddModel()">添加</button>
                                    <button class="btn btn-default" ng-click="delSelected()">删除</button>
                    </div>
                </div>
            </di