1. 作用
python中的list類似數(shù)組，python最常見的數(shù)據(jù)類型，可以存儲不同類型的數(shù)據(jù)企垦。
2. 操作
創(chuàng)建列表
>>> l1 = ['Tommy', 'Laura', 'Andy']
>>> l1
['Tommy', 'Laura', 'Andy']
>>> l2 = [i for i in range(10)]
>>> l2
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> l3 = ['Bill', 25, 'Teacher']
>>> l3
['Bill', 25, 'Teacher']
>>>
利用索引進(jìn)行訪問斯碌，修改
>>> l1[1]
'Laura'
>>> l2[0]
0
>>> l1[1] = 'Maria'
>>> l1
['Tommy', 'Maria', 'Andy']
>>> l2[0] = 100
>>> l2
[100, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>>
列表添加元素append，插入元素insert
>>> l1
['Tommy', 'Maria', 'Andy']
>>> l1.append('Julia')
>>> l1
['Tommy', 'Maria', 'Andy', 'Julia']
>>> l2.append(l0)
>>> l2
[100, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>> l1.append(l2)
>>> l1
['Tommy', 'Maria', 'Andy', 'Julia', [100, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]]
>>> l2.insert(2, 20)
[100, 1, 20, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>>
刪除列表元素del，pop羡微， remove支救， clear
>>> l3
['Bill', 25, 'Teacher']
>>> del l3[2] # 刪除某一個元素
>>> l3
['Bill', 25]
>>> l3.pop() # 刪除最后一個元素，也可以添加參數(shù)l3.pop(2)進(jìn)行刪除并返回
25
>>> l3
['Bill']
>>> l3.remove('Bill') # 刪除指定元素
>>> l3
[]
>>> l3 = ['Bill', 25, 'Teacher']
>>> l3
['Bill', 25, 'Teacher']
>>> l3.clear()
>>> l3
[]
>>>
利用切片截取列表[n:m]
>>> l2
[100, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>> l2[2:6]
[2, 3, 4, 5]
>>>
列表合并extend
>>> a = [1, 2, 3]
>>> b = [4, 5, 6]
>>> a.extend(b)
>>> a
[1, 2, 3, 4, 5, 6]
>>>
找出某元素的索引index
>>> l1
['Tommy', 'Maria', 'Andy', 'Julia', [100, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]]
>>> l1.index('Tommy')
0
>>>
反向列表中元素reverse, [::-1]
>>> l2.reverse()
>>> l2
[10, 9, 8, 7, 6, 5, 4, 3, 2, 20, 1, 100]
>>> l2[::-1]
[100, 1, 20, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>>
列表排序sort([func])
>>> list1 = ['Google', 'Runoob', 'Taobao', 'Baidu']
>>> list1.sort()
>>> list1
['Baidu', 'Google', 'Runoob', 'Taobao']
列表復(fù)制copy
>>> list3 = [x for x in range(10)]
>>> list1 = list3.copy() # 深拷貝
>>> list1
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> list1[2] = 100
>>> list3
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> list1
[0, 1, 100, 3, 4, 5, 6, 7, 8, 9]
>>> list2 = list1 # 淺拷貝
>>> list2
[0, 1, 100, 3, 4, 5, 6, 7, 8, 9]
>>> list1[2] = 2
>>> list1
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> list2
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>>
列表長度len拷淘，最大值max
>>> l1 = [x for x in range(5)]
>>> len(l1)
5
>>> max(l1)
4
>>>min(l1)
0
將元組轉(zhuǎn)換為列表list
>>> tup = (1, 2, 3)
(1, 2, 3)
>>> list(tup)
[1, 2, 3]
