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a = ['wuchao','jinxing','xiaohu','sanpan','ligang']
取索引出值,索引從左到右是從0開始算;從右到左是從-1來算
print(a[1]) #取第二個(gè)值
print(a[1:-1]) #從第二取到倒數(shù)第二個(gè)值
print(a[1:-1:1])#從左到右一個(gè)一個(gè)地取值
print(a[1::2]) #從左到右隔一個(gè)去取值
print(a[3::-2]) #從右到左隔一個(gè)去取值
a.append('xupeng')
print(a)
輸出結(jié)果:
['wuchao', 'jinxing', 'xiaohu', 'sanpan', 'ligang', 'xupeng']
a.insert(3,'haha')
print(a)
輸出結(jié)果:
['wuchao', 'jinxing', 'xiaohu', 'haha', 'sanpan', 'ligang']
單個(gè)修改
a[1]='haha'
print(a)
#輸出結(jié)果:
['wuchao', 'haha', 'xiaohu', 'sanpan', 'ligang']
多個(gè)修改
a[1:3]=['a','b']
print(a)
輸出結(jié)果:
['wuchao', 'a', 'b', 'sanpan', 'ligang']
remove
a.remove(a[1])
a.remove('wuchao')
print(a)
輸出結(jié)果:
['xiaohu', 'sanpan', 'ligang']
pop---可以用變量來接收刪除內(nèi)容
b = a.pop(1)
print(a)
print(b)
輸出結(jié)果:
['wuchao', 'xiaohu', 'sanpan', 'ligang']
jinxing
del---可以刪除變量
del a[1]
print(a)
輸出結(jié)果:
['wuchao', 'xiaohu', 'sanpan', 'ligang']
del a
a = ['wuchao','jinxing','xiaohu','sanpan','ligang','wuchao'].count('wuchao')
print(a)輸出結(jié)果:2
a = [1,2,3]
b = [4,5,6]
a.extend(b)
print(a,b)
輸出結(jié)果:
[1, 2, 3, 4, 5, 6] [4, 5, 6]
a = ['wuchao','jinxing','xiaohu','sanpan','ligang']
print(a.index('xiaohu'))
輸出結(jié)果:
2
a = ['wuchao','jinxing','xiaohu','sanpan','ligang']
a.reverse()
print(a)
輸出結(jié)果:
['ligang', 'sanpan', 'xiaohu', 'jinxing', 'wuchao']
s = [1,5,3,2]
s.sort()
print(s)
輸出結(jié)果:
[1, 2, 3, 5]
s = ['ligang', 'Sanpan', 'xiaohu', 'Jinxing', 'wuchao']
s.sort() #從小到大
s.sort(reverse=True) #從大到小
print(s)
輸出結(jié)果:先排大寫,后排小寫
['Jinxing', 'Sanpan', 'ligang', 'wuchao', 'xiaohu']
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