Python 之 使用全局变量

这里定义了两个全局的变量countx 和 county

#!/usr/bin/env python

#__metaclass__ = type

nest = [[1,2],[3,4],5]

countx = 0

county = 0

def flatten(nested):

try:

for sublist in nested:

print 'sublist=',sublist

# global countx

# print 'countx = %i' % countx

# countx += 1

for element in flatten(sublist):

print 'element=',element

# global county

# print 'county = %i' % county

# county += 1

yield element

except TypeError:

print 'except'

# print countx,county

yield nested