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l = [5,4,3,2,1]
l = l.sort()
print(l) << this prints "None" << why is this happening
l = [5,4,3,2,1]
k = l.sort()
print(k) << this prints "None"
print(l) << This prints [1, 2, 3, 4, 5]
我可以知道確切的行爲是什麼?當同一個變量分配給它時,爲什麼列表的值是'None'?請檢查給出的代碼
'sort'就地改變了列表。 – Maroun