list=[1,2,3,4]
it?=?iter(list)????#?創(chuàng)建迭代器對象
for?x?in?it:
????print?(x,?end="?")
????
list=[1,2,3,4]
#it?=?iter(list)????#?創(chuàng)建迭代器對象
for?x?in?list:
????print?(x,?end="?")
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