matplotlib 学习笔记

python使用matplotlib绘制折线图教程

marker画成空心的

import numpy as np
import matplotlib.pyplot as plt
x = np.linspace(0,50)
 
y1 = 2 * x + 1
y2 = x**2
 
plt.plot(y2, '-', marker='o',markerfacecolor='none')
plt.show()