matplotlib绘制饼图和散点图

• • 饼图
  • • 代码
    • 效果
  • 散点图
  • • 代码
    • 效果

import matplotlib.pyplot as plt
langs = ['C', 'C++', 'Java', 'Python', 'PHP']
students = [23, 17, 35, 29, 12]
plt.figure()
plt.title("pie")  # 添加标题
plt.pie(students, labels=langs, autopct='%1.2f%%')  # 绘制饼图
plt.show()

import matplotlib.pyplot as plt
import numpy as np

list1 = [1, 2, 3, 4, 5, 6, 7, 8]
list2 = [1, 4, 9, 16, 7, 11, 23, 18]
sizes = np.array([20, 50, 100, 200, 500, 1000, 60, 90])  # 设置散点图的点的大小
plt.scatter(list1, list2, s=sizes, color='r')  # 绘制散点图，设置颜色
plt.title("scatter")  # 添加标题
plt.show()