Python visualizes the plot of matplotlib

plot() – draw a graph

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Function format:

plt.plot(x,y,ls="-",lw=2,label="图例名")

Parameter Description:

• x: the value on the x-axis
• y: the value on the y-axis
• ls: line style
• lw: line width
• label: legend text

code:

import matplotlib.pyplot as plt
import numpy as np
# 准备数据
x = np.linspace(0.05,10,100)
y = np.sin(x)
# 画线条
plt.plot(x,y,ls=":",label="plot")
# 显示图例
plt.legend()
# 显示图形，必须的
plt.show()