           <div class="form-group col-sm-12"></div>
                            <label class="col-sm-2 control-label">重试时间间隔(s)</label>
                            <div class="col-sm-10">
                                <input id="interval_time" name="interval_time" type="text" value="5"
                                       placeholder="重试时间间隔单位是秒,example: 5" class="form-control" aria-required="true"> </span>
                            </div>
                            <d