itle="这里是提示内容">右侧提示</button>
                        </div>
                        <br>
                        <h4>工具提示 - 单击提示</h4>
                        <div class="text-center" >
                            <button type="button" class="btn btn-primary"  data-toggle="popover" data-placement="auto left" data-content="气泡提示">
                                气泡提示左
                            </button>
                            <button type="