python的语法

 

翻译http://docs.python.org/tutorial/classes.html#a-first-look-at-classes

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global

#!/usr/bin/python
# Filename: func_global.py

def func():
    global x

    print 'x is', x
    x = 2
    print 'Changed local x to', x

x = 50
func()
print 'Value of x is', x 

 x is 40

Changed locale x to 2