Python本地与全局命名空间用法实例

x = 1
def fun(a):
 b=3
 x=4
 def sub(c):
 d=b
 global x
 x = 7
 print ("Nested Function
=================")
 print locals()
 sub(5)
 print ("
Function
=================")
 print locals()
 print locals()["x"]
 print globals()["x"]
print ("
Globals
=================")
print globals()
fun(2)
 
///scope.py
Globals
=================
{'x': 1,
 '__file__':
'C:\books\python\CH1\code\scope.py',
 'fun': ,
 't': ,
 'time': ,. . .}
Nested Function
=================
{'c': 5, 'b': 3, 'd': 3}
Function
=================
{'a': 2, 'x': 4, 'b': 3, 'sub':
 }
4
7