參考：https://www.jb51.net/article/152685.htm
用plt.text函數
import numpy as np import matplotlib.mlab as mlab import matplotlib.pyplot as plt ...... for x,y in zip(X,Y): plt.text(x, y+0.05, '%.0f' % y, ha='center', va= 'bottom',fontsize=11) ...... plt.show()
