# 找出一个列表中所有数字重新添加到一个列表中
l = ['a','b',1,3,[5,'a',4,['b',7],'k',9],10,100,'m', 8.5]
l1 = []
def number_list(l):
for i in l:
if isinstance(i, list):
number_list(i)
if type(i) in (int, float):
l = ['a','b',1,3,[5,'a',4,['b',7],'k',9],10,100,'m', 8.5]
l1 = []
def number_list(l):
for i in l:
if isinstance(i, list):
number_list(i)
if type(i) in (int, float):
l1.append(i)
return l1
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