我想在Bokeh中标记我的Span注释,就像在下面的图中一样。 (对不起链接,我的声誉不允许我发布图片) https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwj-vOX589LMAhWh8YMKHYe0CsIQjRwIBw&url=http%3A%2F%2Fmathematica.stackexchange.com%2Fquestions%2F80467%2Fadding-annotations-to-plot-with-vertical-leader-line-to-the-curve&psig=AFQjCNE_kMOcJTDxiDbCPdZY2T2-Rk44Vw&ust=1463086437547238