matplotlib绘制圆饼图

 1 import matplotlib.pyplot as plt
 2 labels = [\'Nokia\',\'Samsung\',\'Apple\',\'Lumia\']
 3 values = [10,30,45,15]
 4 colors = [\'yellow\',\'green\',\'red\',\'blue\']
 5 
 6 #其中，labels、values、colors，explode(当然explode数组中的个数与上面对应，而且每个值的范围介于0-1之前)的对应关系:\'Nokia\'-10-yellow-0,\'Samsung\'-30-green-0.1,\'Apple\'-45-red-0.2,\'Lumia\'-15-blue-0
 7 explode = [0,0.1,0.2,0]
 8 plt.pie(values,labels=labels,colors=colors,explode=explode)
 9 plt.axis(\'equal\')
10 plt.show()