列表嵌套

l1 = [1,2,'fsafdawsfdsjlkj',[1,'saf',3,]]
# print(l1[2])
# print(l1[2].upper())

l1[2] = l1[2].upper()
print(l1)

9‘

标签：upper,fsafdawsfdsjlkj,saf,列表,嵌套,l1,print
来源： https://www.cnblogs.com/ETH8888/p/16621183.html