Python - matplotlib pyplot - How to change figure size of Matplotlib pyplot - 更改Matplotlib pyplot 的畫布大小

Python version：Python 3.6.0 :: Anaconda 4.3.1 (64-bit)
matplotlib version：2.0.0
System version：Windows 10

from matplotlib import pyplot as plt
plt.rcParams["figure.figsize"] = (8,5)
plt.plot([1,2,3,4],[1,2,1,3])
plt.show()

Result：