48 lines
346 B
Python
48 lines
346 B
Python
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"""
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作用域问题
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Version: 0.1
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Author: 骆昊
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Date: 2018-03-05
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"""
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# 局部作用域
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def foo1():
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a = 5
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foo1()
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# print(a) # NameError
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# 全局作用域
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b = 10
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def foo2():
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print(b)
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foo2()
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def foo3():
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b = 100 # 局部变量
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print(b)
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foo3()
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print(b)
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def foo4():
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global b
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b = 200 # 全局变量
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print(b)
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foo4()
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print(b)
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