文章背景，记录python 小demo 集合

1、使用python matplotlib库描绘曲线

import matplotlib.pyplot as NLA
 
x_index = [0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100]
y_index = [6.1, 7.4, 9.1, 11.1, 12.69, 14.35, 16.1, 17.7, 19.98, 21.26, 22.48, 24.5, 26.25, 27.9, 29.56, 31.2, 32.9, 34.78, 36.4, 39.1, 40]
 
def curve(x, y):
    NLA.plot(x, y)
    NLA.title("NonelinearCurve curve")
    NLA.xlabel("Blacklight Value")
    NLA.ylabel("PWM Value")
    NLA.show()
 
if __name__=='__main__':
    curve(x_index, y_index)

运行前先安装库：pip3 install matplotlib

效果如下