我需要一些格式化方面的帮助。如何更改第二张图和第三张图之间的距离
from matplotlib.font_manager import FontProperties
import matplotlib.pyplot as plt
fig = plt.figure(1)
graph1 = fig.add_subplot(3,1,1)
graph2 = fig.add_subplot(3,1,2)
norm = fig.add_subplot(3,1,3)
graph1.set_title(TITLE + '\nscaling factor: ' +str(round(rescale,3)))
norm.set_title('Circle and Oval Height Difference')
norm.set_xlabel(XLABEL +'(Degrees)')
norm.legend(bbox_to_anchor=(1.13,1), prop={'size':8})
plt.ylabel('Heights (nm)')
graph1.legend(bbox_to_anchor=(1.13,1),prop={'size':8})
graph2.legend(bbox_to_anchor=(1.13,1),prop={'size':8})
fontP = FontProperties()
fontP.set_size('small')