一段代码分清global和nonlocal
Posted aqin1012
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了一段代码分清global和nonlocal相关的知识，希望对你有一定的参考价值。
废话不多说，直接代码啊~~~
a=999
b=99999
def test1():
a=888
b=88888
print(‘a=‘.format(a))
print(‘b=‘.format(b))
def test2():
global a
print(‘a=‘.format(a))
a+=1
print(‘a=‘.format(a))
nonlocal b
b+=1
print(‘b=‘.format(b))
print(globals())
print(locals())
test2()
print(globals())
print(locals())
test1()
print(‘b=‘.format(b))
print(globals())
print(locals())
输出结果：
a=888 b=88888 a=999 a=1000 b=88889 ‘__name__‘: ‘__main__‘, ‘__doc__‘: None, ‘__package__‘: None, ‘__loader__‘: <_frozen_importlib_external.SourceFileLoader object at 0x0000011762666FD0>, ‘__spec__‘: None, ‘__annotations__‘: , ‘__builtins__‘: <module ‘builtins‘ (built-in)>, ‘__file__‘: ‘H:/py/day12.py‘, ‘__cached__‘: None, ‘a‘: 1000, ‘b‘: 99999, ‘test1‘: <function test1 at 0x000001176261C1E0> ‘b‘: 88889 ‘__name__‘: ‘__main__‘, ‘__doc__‘: None, ‘__package__‘: None, ‘__loader__‘: <_frozen_importlib_external.SourceFileLoader object at 0x0000011762666FD0>, ‘__spec__‘: None, ‘__annotations__‘: , ‘__builtins__‘: <module ‘builtins‘ (built-in)>, ‘__file__‘: ‘H:/py/day12.py‘, ‘__cached__‘: None, ‘a‘: 1000, ‘b‘: 99999, ‘test1‘: <function test1 at 0x000001176261C1E0> ‘a‘: 888, ‘test2‘: <function test1.<locals>.test2 at 0x000001176295A378>, ‘b‘: 88889 b=99999 ‘__name__‘: ‘__main__‘, ‘__doc__‘: None, ‘__package__‘: None, ‘__loader__‘: <_frozen_importlib_external.SourceFileLoader object at 0x0000011762666FD0>, ‘__spec__‘: None, ‘__annotations__‘: , ‘__builtins__‘: <module ‘builtins‘ (built-in)>, ‘__file__‘: ‘H:/py/day12.py‘, ‘__cached__‘: None, ‘a‘: 1000, ‘b‘: 99999, ‘test1‘: <function test1 at 0x000001176261C1E0> ‘__name__‘: ‘__main__‘, ‘__doc__‘: None, ‘__package__‘: None, ‘__loader__‘: <_frozen_importlib_external.SourceFileLoader object at 0x0000011762666FD0>, ‘__spec__‘: None, ‘__annotations__‘: , ‘__builtins__‘: <module ‘builtins‘ (built-in)>, ‘__file__‘: ‘H:/py/day12.py‘, ‘__cached__‘: None, ‘a‘: 1000, ‘b‘: 99999, ‘test1‘: <function test1 at 0x000001176261C1E0> Process finished with exit code 0
以上是关于一段代码分清global和nonlocal的主要内容，如果未能解决你的问题，请参考以下文章