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Python二级考试知识点(史上最全),面试总结

ListA.append(5)

ListA.remove(1)

ListA.extend([6,7,1])

ListA.insert(0,1)

del ListA[0]

print(ListA)

print(ListA.count(1))

print(ListA.index(1))

print(ListA.index(1,1,len(ListA)))

ListA.pop()

ListA.pop(2)

ListA.reverse()

print(ListA)

ListA.sort(reverse=True)

列表索引

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ls1 = [‘James’,‘Andy’,1,2,3]

print(ls1[0])

print(ls1[1:])

print(ls1[:3])

ls2 = [‘Nike’,‘Biber’]

ls = ls1 + ls2

print(ls)

字符串操作

字符串的连接

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str1 = ‘lk’

str2 = ‘psr’

str3 = str1 + str2

print(‘Well Water’+‘River’)

字符串的复制

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str1 = ‘I love math’

str2 = str1*3

print(‘I Love U\n’*3)

字符串的转义

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a = ‘Let’s go’

b = r’C:\lk’

多行字符串

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str =

‘’’ lk

lk

lk

‘’’

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