单选题

执行下面python代码后,输出的结果是?(    )

def add():

count = 1

def fun():

         nonlocal count

         print(count, end="#")

         count += 2

return fun

a = add()

a()

a()

A

1#3#

B

1#1#

C

3#3#

D

add函数语法错误

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