一般運算:索引、分片、加、乘、檢查某個元素是否屬於序列的成員、長度、最小值、最大值
範例:
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numbers=[100,34,67] len(numbers) #返回值为3max(numbers) #返回值为100min(numbers) #返回值为34
列表:
#1、list函數#
>>>list('Hello') ['H','e','l','l','o']
>>>x=[1,2,3]>>>x[1]=4 >>>x [1,4,3]
>>>x=['abc','def','ghi','jk']>>>del x[2]>>>x ['abc','def','jk']
>>>x=list('Happy')>>>name ['H','a','p','p','y']>>>x[1:]=list('ello')>>>x ['H','e','l','l','o']
3、列表方法:append
>>>x=[1,2,3]>>>x.append(4)>>>x [1,2,3,4]
>>>x=[1,2,3,1,3,5,5]>>>x.count(3)2
>>>a=[1,1] >>>b=[2,3] >>>a.extend(b) >>>a [1,1,2,3]
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>>>x=['a','b','c'] >>>x.index('b') 1
>>>x=[1,2,3] >>>x.insert(2,'a') >>>x [1,2,'a',3]
>>> x=[1,2,3,4]>>> x.pop()4 >>> x.pop(1)2 >>> x [1, 3]
>>> x=['my','to','is','she','to']>>> x.remove('to')>>> x ['my', 'is', 'she', 'to']
>>> x=[1,2,3]>>> x.reverse()>>> x [3, 2, 1]
>>> x=[1,2,3]>>> list(reversed(x)) [3, 2, 1]>>> x [1, 2, 3]
sort 用於在原始位置對清單進行排序
>>> x=[4,6,2,1,7,8,3]>>> x.sort()>>> x [1, 2, 3, 4, 6, 7, 8]>>> x=[4,6,2,1,7,8,3]>>> y=sorted(x)>>> x [4, 6, 2, 1, 7, 8, 3]>>> y [1, 2, 3, 4, 6, 7, 8]>>> x=[3,2,1]>>> y=x>>> y.sort()>>> x [1, 2, 3]>>> y [1, 2, 3]
>> ;> sorted('hello')
['e', 'h', 'l', 'l', 'o']:不可改變序列
>>> 1,2,3(1, 2, 3)>>> (1,2,3) (1, 2, 3)>>> () #空元组()>>> 1, SyntaxError: invalid syntax>>> 1, (1,)>>> 1, #元祖必须有逗号(1,)>>> 3*(40+2,) (42, 42, 42)
tuple函數將序列轉換成元組
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>>> tuple([3,2,1]) (3, 2, 1)>>> tuple('abc') ('a', 'b', 'c')
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