                                   <input class="form-control" type="text" id="f-start_address" placeholder="输入你的出发地点">
                                </div>
                            </div> <!-- end col -->

                            <div class="col-lg-6 mt-3 mt-lg-0">
                                <div class="form-group mb-3">
                                    <label>到达地点</label>
                                    <input type="text" class="form-control" data-provide="type