import numpy as np
import matplotlib.pyplot as plt
#The slices will be ordered and plotted counter-clockwise.
labels ='Frogs','Hogs','Dogs','Logs'
sizes =[15,30,45,10]
colors =['yellowgreen','gold','#FF0000','lightcoral']
#使餅狀圖中第2片和第4片裂開
explode =(0,0.1,0,0.1)
fig = plt.figure()
ax = fig.gca()
ax.pie(np.random.random(4), explode=explode, labels=labels, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=90,
radius=0.25, center=(0,0), frame=True)
ax.pie(np.random.random(4), explode=explode, labels=labels, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=90,
radius=0.25, center=(1,1), frame=True)
ax.pie(np.random.random(4), explode=explode, labels=labels, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=90,
radius=0.25, center=(0,1), frame=True)
ax.pie(np.random.random(4), explode=explode, labels=labels, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=90,
radius=0.25, center=(1,0), frame=True)
#設(shè)置坐標(biāo)軸刻度
ax.set_xticks([0,1])
ax.set_yticks([0,1])
#設(shè)置坐標(biāo)軸刻度上顯示的標(biāo)簽
ax.set_xticklabels(["Sunny","Cloudy"])
ax.set_yticklabels(["Dry","Rainy"])
#設(shè)置坐標(biāo)軸跨度
ax.set_xlim((-0.5,1.5))
ax.set_ylim((-0.5,1.5))
#設(shè)置縱橫比相等
ax.set_aspect('equal')
plt.show()