import matplotlib.pyplot as plt 出错，求解答

ImportError                               Traceback (most recent call last)
 in ()
----> 1 import matplotlib.pyplot as plt
      2 get_ipython().magic('matplotlib inline')

~\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\pyplot.py in ()
     30 from cycler import cycler
     31 import matplotlib
---> 32 import matplotlib.colorbar
     33 from matplotlib import style
     34 from matplotlib import _pylab_helpers, interactive

~\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\colorbar.py in ()
     34 import matplotlib.collections as collections
     35 import matplotlib.colors as colors
---> 36 import matplotlib.contour as contour
     37 import matplotlib.cm as cm
     38 import matplotlib.gridspec as gridspec

~\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\contour.py in ()
     19 import matplotlib.colors as colors
     20 import matplotlib.collections as mcoll
---> 21 import matplotlib.font_manager as font_manager
     22 import matplotlib.text as text
     23 import matplotlib.cbook as cbook

~\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\font_manager.py in ()
     56 
     57 import matplotlib
---> 58 from matplotlib import afm, cbook, ft2font, rcParams, get_cachedir
     59 from matplotlib.compat import subprocess
     60 from matplotlib.fontconfig_pattern import (

ImportError: DLL load failed: 找不到指定的程序。