绘制散点图

# coding = utf - 8
from matplotlib import pyplot as plt

y_3 = [11,17,16,11,12,11,12,6,6,7,8,9,12]
y_10 = [26,26,28,19,21,17,16,19,18,20,19,17,23]

x_3 = range(1, 14)
x_10 = range(21, 34)

# 设置图形大小
plt.figure(figsize=(12, 6), dpi=80)

# 使用scatter绘制散点图和之前绘制折线图的唯一区别
plt.scatter(x_3, y_3, label = "March")
plt.scatter(x_10, y_10, label = "October")

# 调整x轴的刻度
_x = list(x_3) + list(x_10)
_xtick_labels = ["March {}".format(i) for i in x_3]
_xtick_labels += ["October {}".format(i - 20) for i in x_10]
plt.xticks(_x[::3], _xtick_labels[::3], rotation = 45)

# 添加描述信息
plt.xlabel("time")
plt.ylabel("temperature ")
plt.title("title")

# 添加图例
plt.legend()

# 展示
plt.show()