W3School TIY Editor

# 这三行代码初始化Python绘图环境： import sys import matplotlib matplotlib.use('Agg') import matplotlib.pyplot as plt import numpy as np # 准备饼图数据： y = np.array([35, 25, 25, 15]) # 饼图各区块占比 mylabels = ["苹果", "香蕉", "樱桃", "枣子"] # 区块标签 mycolors = ["black", "hotpink", "b", "#4CAF50"] # 颜色参数 # 绘制饼图： plt.pie(y, labels = mylabels, colors = mycolors) plt.show() # 显示图表 # 图形输出指令： plt.savefig(sys.stdout.buffer) sys.stdout.flush()