Python学习笔记：Matplotlib绘图基础

Matplotlib绘图(https://matplotlib.org/gallery.html)：
1、绘图API--pyplot模块
折线图：import numpy as np
import matplotlib.pyplot as plt
t=np.arange(0,4,0.1)
plt.plot(t,t,t,t+2,t,t**2)散点图：import numpy as np
import matplotlib.pyplot as plt
t=np.arange(0,4,0.1)
plt.plot(t,t,'o',t,t+2,'o',t,t**2,'o')2、集成库--pylab模块（包含numpy和pyplot中的常用函数）
import numpy as np
import pylab as pl
t=np.arange(0,4,0.4)
pl.plot(t,t,t,t+2,t,t**2)