python中关于循环的一些编写程序问题

Question

Answer 1

aList = [-1, -4, 6, 7, 3, 9, -11]
lis1 = [i for i in aList if i>=6 and i<9]
print(lis1)

lis2 = []
for i in aList:
    if i >= 6 and i < 9:
        lis2.append(i)
print(lis2)

lis3 = []
while aList != []:
    li = aList.pop()
    if li >= 6 and li < 9:
        lis3.append(li)
print(lis3)

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