python使用networkx.draw()画图是出错，怎么办？ |python os.popen wait

importnetworkxasnetimportmatplotlib.pyplotaspltorgchart=net.read_pajek(*.net)net.draw(orgchart)然后就出现“D:\Anaconda3\lib\site-packages\networkx\drawing\nx_pylab.py:126:MatplotlibDeprecationWarning:pyplot.holdisdeprecated.plotcommandsaddelementswithoutfirstclearingtheAxesand/orFigure.b=plt.ishold()warnings.warn(self.msg_depr_set%key)matplotlib\rcsetup.py:152:UserWarning:axes.holdisdeprecated,willberemovedin3.0怎么解决？