matplotlib系列——饼图

import matplotlib.pyplot as plt
import numpy as np
import matplotlib
import sys

#饼图
def die(labels,sizes,s=0):
    figure()
    #突出最大部分
    explode =np.zeros(len(sizes))
    explode[np.argmax(sizes)]=0.1
    explode=tuple(explode)
    
    plt.pie(sizes,explode=explode,labels=labels,autopct='%1.1f%%',shadow=False,startangle=90)
    
  
    if s==1:
        Save()
    plt.show()

#获取当前文件夹，并根据文件名生成文件路径 
def path(fileName):
    p=sys.path[0]+'\\'+fileName
    return p

#保存图片    
def Save():
    fig = plt.gcf()
    fig.set_size_inches(7.2, 4.2)
    fig.savefig(path('1.png'), dpi=400)

#设置画布 
def figure():
    # 设置图形对象 ：窗口
    plt.figure('Figure Object 1',       # 图形对象名称  窗口左上角显示
               figsize = (8, 10),        # 窗口大小
               dpi = 120,               # 分辨率
               facecolor = 'white',     # 背景色
               )

def data2():
    x = ["lang","jiqing8","yujia","xiyou","jingang","shuaijiao"]
    y = [56.01,26.94,17.53,16.49,15.45,12.96]
    return x,y

labels,sizes=data2()
die(labels,sizes,s=1)