in closure functions, nonlocal is generally used to declare non-local variables, for example:
def func1():
num=0
def iner():
nonlocal num
num+=1
return num
return iner
res1=func1()
print([res1(),res1(),res1(),res1()])-sharp[1,2,3,4]but today I see another way to write it, which can achieve the same effect:
def func2():
func2.num=0
def iner():
func2.num+=1
return func2.num
return iner
res2=func2()
print([res2(),res2(),res2(),res2()]) -sharp[1,2,3,4]
like this, similar to defining class attributes, but using function names to declare non-local variables, I don"t understand.
is there a great god who can explain it?