用plot（）函数绘制折线图

函数绘制折线图"/>

用plot（）函数绘制折线图

# 需求一：添加一个中间气温折线图，并用红色虚线展示该折线图#最高气温 [32, 33, 34, 34, 33, 31, 30, 29, 30, z29, 26, 23, 21, 25, 31]
#最低气温 [19, 19, 20, 22, 22, 21, 22, 16, 18, 18, 17, 14, 15, 16, 16]import matplotlib.pyplot as plt
import numpy as np# 1.准备气温数据(最高温和最低温)
x = np.arange(4, 19)
y_max = np.array([32, 33, 34, 34, 33, 31, 30, 29, 30, 29, 26, 23, 21, 25, 31])
y_min = np.array([19, 19, 20, 22, 22, 21, 22, 16, 18, 18, 17, 14, 15, 16, 16])# 2.准备中间气温数据（提示：最小值+最大值，再除以2）
y_med = np.array(y_max + y_min)/2# 3.绘制折线图
plt.plot(x, y_max)
plt.plot(x, y_min,)
plt.plot(x, y_med, ':' ,c='r',)# 4.展示图表
plt.show()

运行结果如下：