def createCounter():
a=0
def counter():
nonlocal a #声明a不是一个局部变量,否则局部变量一旦修改就会报错
a+=1
return a
return counter
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暮秋廿六08
def createCounter():
a=0
def counter():
nonlocal a #声明a不是一个局部变量,否则局部变量一旦修改就会报错
a+=1
return a
return counter