tyle="width: 200px;" data-toggle="select2"  onchange="changeType()" >
                            <option value="order_num"  selected>订单数量图表</option>
                            <option value="settle_amount" >货款金额图表</option>

                        </select>
                        <div class="form-group fl">
                            <a class="btn btn-default " data-toggle="reportrange" data-change="submit">
                                <i class="fa fa-calendar fa-lg"></i>
   