import numpy as np
import matplotlib.pyplot as plty1 = [2.3, 3.6, 3.4, 4.6, 5.9, 6.6, 6.9]
y2 = [2 , 2.8, 2.1, 4.1, 4.5, 5.9, 6]
x = ["a","b","c","d","e","f","g"]
""" 绘制折线图方法plot 参数一：y轴 参数二：x轴 """
# plt.plot(x, y,color='red')
plt.plot(x, y1, label="line L", alpha=0.8)
plt.plot(x, y2, label="line H", alpha=0.8)plt.ylim(0,9)plt.xlabel("x axis")
plt.ylabel("y axis")
plt.title("Line Graph Example")for x, y1 in enumerate(y1):plt.text(x, y1, y1)for x, y2 in enumerate(y2):plt.text(x, y2, y2)plt.legend()
plt.show()
