python 元组和列表

list

Python内置的一种数据类型是列表：list。list是一种有序的集合，可以随时添加和删除其中的元素。

  1. 切片查看

     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
 print(names)
 print(names[1:3])   ##切片；顾头不顾尾
 print(names[0:3])
 print(names[-1])
 print(names[-2:])
 print(names[:3])
 print(names[0],names[2])
 
 D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
 ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
 ['4Guyun', 'Xiangpeng']
 ['#ZhangYang', '4Guyun', 'Xiangpeng']
 XuLiangChen
 ['ChenRonghua', 'XuLiangChen']
 ['#ZhangYang', '4Guyun', 'Xiangpeng']
 #ZhangYang Xiedi

  2. 追加

     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
 print(names)
 names.append('LeiHaidong')
 
 D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
 ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
 ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']

  3. 插入

     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
 print(names)
 names.append('LeiHaidong')
 names.insert(1,"ChenRonghua")
 names.insert(3,"XingZhiyu")

 D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
 ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
 ['#ZhangYang', 'ChenRonghua', '4Guyun', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']

  4. 替换

     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
 print(names)
 names.append('LeiHaidong')
 names.insert(1,"ChenRonghua")
 names.insert(3,"XingZhiyu")
 names[2] ='Xiedi'

 D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
 ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
 ['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']

  5. 删除

     方法一：
     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
     print(names)
     names.append('LeiHaidong')
     names.insert(1,"ChenRonghua")
     names.insert(3,"XingZhiyu")
     names[2] ='Xiedi'
     print(names)
 
     #delete(三种方法)
     names.remove('ChenRonghua')
     #del names[1]=names.pop(1)
     #names.pop(1)

     print(names)

     D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
     ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
     ['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']
     ['#ZhangYang', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']


 方法二：
     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
     print(names)
     names.append('LeiHaidong')
     names.insert(1,"ChenRonghua")
     names.insert(3,"XingZhiyu")
     names[2] ='Xiedi'
     print(names)
 
     #delete(三种方法)
     #names.remove('ChenRonghua')
     #del names[1]=names.pop(1)
     del names[1]
     #names.pop(1)

     print(names)
 
     D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
     ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
     ['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']
     ['#ZhangYang', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']


 方法三：
     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
     print(names)
     names.append('LeiHaidong')
     names.insert(1,"ChenRonghua")
     names.insert(3,"XingZhiyu")
     names[2] ='Xiedi'
     print(names)
 
     #delete(三种方法)
     #names.remove('ChenRonghua')
     #del names[1]=names.pop(1)
     #del names[1]
     names.pop(1)

     print(names)
 
     D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
     ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
     ['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']
     ['#ZhangYang', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']

  6. 查找

     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
 print(names)
 names.append('LeiHaidong')
 names.insert(1,"ChenRonghua")
 names.insert(3,"XingZhiyu")
 names[2] ='Xiedi'
 print(names)        

 
 print(names.index("Xiedi"))
 print(names[names.index("Xiedi")])
 
 D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
 ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
 ['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']
 2
 Xiedi

  7. 个数

     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
 print(names)
 names.append('LeiHaidong')
 names.insert(1,"ChenRonghua")
 names.insert(3,"XingZhiyu")
 names[2] ='Xiedi'
 print(names)        
 
 print('ChenRonghua:',names.count("ChenRonghua"))
 
 D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
 ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
 ['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']
 ChenRonghua: 2

  8. 清空

     names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
 print(names)
 names.append('LeiHaidong')
 names.insert(1,"ChenRonghua")
 names.insert(3,"XingZhiyu")
 names[2] ='Xiedi'
 print(names)        
 
 names.clear()
 print(names)
 
 D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
 ['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
 ['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']
 []

  9. 顺序翻转和ASCII码排序

    names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
print(names)
names.append('LeiHaidong')
names.insert(1,"ChenRonghua")
names.insert(3,"XingZhiyu")
names[2] ='Xiedi'
print(names)        
          
names.reverse()   ##顺序翻转
print(names)
names.sort()    #按照ASCII顺序翻转
print(names)   

D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']
['LeiHaidong', 'XuLiangChen', 'ChenRonghua', 'Xiangpeng', 'XingZhiyu', 'Xiedi', 'ChenRonghua', '#ZhangYang']
['#ZhangYang', 'ChenRonghua', 'ChenRonghua', 'LeiHaidong', 'Xiangpeng', 'Xiedi', 'XingZhiyu', 'XuLiangChen']

  10. 列表追加进列表

    names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
print(names)
names.append('LeiHaidong')
names.insert(1,"ChenRonghua")
names.insert(3,"XingZhiyu")
names[2] ='Xiedi'
print(names)        
          
names2 = [1,2,3,4]
names.extend(names2)
print(names,names2)

D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']
['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong', 1, 2, 3, 4] [1, 2, 3, 4]

  11. 删除列表

    names = ["#ZhangYang","4Guyun","Xiangpeng","ChenRonghua","XuLiangChen"]
print(names)
names.append('LeiHaidong')
names.insert(1,"ChenRonghua")
names.insert(3,"XingZhiyu")
names[2] ='Xiedi'
print(names)        
          
names2 = [1,2,3,4]
names.extend(names2)
del names2
print(names,names2)

D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
['#ZhangYang', '4Guyun', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen']
Traceback (most recent call last):
['#ZhangYang', 'ChenRonghua', 'Xiedi', 'XingZhiyu', 'Xiangpeng', 'ChenRonghua', 'XuLiangChen', 'LeiHaidong']
  File "D:/PycharmProjects/zhuyouen/0403/names.py", line 35, in <module>
    print(names,names2)
NameError: name 'names2' is not defined   ------->因为没有列表‘name2’,所以没有定义

  12. 切片查看

    方法一：
    names = ["#ZhangYang","4Guyun","Xiangpeng",['alex','jack'],"ChenRonghua","XuLiangChen"]
    for i in range(1,6,2):
        print(names[i])
    print()
    for i in names:
        print(i)
	
    D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
    4Guyun
    ['alex', 'jack']
    XuLiangChen
	
    #ZhangYang
    4Guyun
    Xiangpeng
    ['alex', 'jack']
    ChenRonghua
    XuLiangChen

方法二：
    names = ["#ZhangYang","4Guyun","Xiangpeng",['alex','jack'],"ChenRonghua","XuLiangChen"]
    print(names)
    print(names[0:-1:2])
    print(names[::2])
    print(names[1::2]

    D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['alex', 'jack'], 'ChenRonghua', 'XuLiangChen']
    ['#ZhangYang', 'Xiangpeng', 'ChenRonghua']
    ['#ZhangYang', 'Xiangpeng', 'ChenRonghua']
    ['4Guyun', ['alex', 'jack'], 'XuLiangChen']

  13. 复制

    方法一：
    names = ["#ZhangYang","4Guyun","Xiangpeng",['alex','jack'],"ChenRonghua","XuLiangChen"]
    name2 = names.copy()
    print(names)
    print(name2)
    print()
    names[2] = "向鹏"
    names[3][0] = "ALEX"
    print(names)
    print(name2)            

    D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['alex', 'jack'], 'ChenRonghua', 'XuLiangChen']
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['alex', 'jack'], 'ChenRonghua', 'XuLiangChen']

    ['#ZhangYang', '4Guyun', '向鹏', ['ALEX', 'jack'], 'ChenRonghua', 'XuLiangChen']
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['ALEX', 'jack'], 'ChenRonghua', 'XuLiangChen']

方法二：
    # author = "zhuyouen"
    import copy
    names = ["#ZhangYang","4Guyun","Xiangpeng",['alex','jack'],"ChenRonghua","XuLiangChen"]
    name2 = copy.copy(names)
    print(names)
    print(name2)
    print()
    names[2] = "向鹏"
    names[3][0] = "ALEX"
    print(names)
    print(name2)            

    D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['alex', 'jack'], 'ChenRonghua', 'XuLiangChen']
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['alex', 'jack'], 'ChenRonghua', 'XuLiangChen']

    ['#ZhangYang', '4Guyun', '向鹏', ['ALEX', 'jack'], 'ChenRonghua', 'XuLiangChen']
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['ALEX', 'jack'], 'ChenRonghua', 'XuLiangChen']

方法三：
    # author = "zhuyouen"
    import copy
    names = ["#ZhangYang","4Guyun","Xiangpeng",['alex','jack'],"ChenRonghua","XuLiangChen"]
    name2 = copy.deepcopy(names)
    print(names)
    print(name2)
    print()
    names[2] = "向鹏"
    names[3][0] = "ALEX"
    print(names)
    print(name2)        

    D:\python35\python.exe D:/PycharmProjects/zhuyouen/0403/names.py
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['alex', 'jack'], 'ChenRonghua', 'XuLiangChen']
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['alex', 'jack'], 'ChenRonghua', 'XuLiangChen']

    ['#ZhangYang', '4Guyun', '向鹏', ['ALEX', 'jack'], 'ChenRonghua', 'XuLiangChen']
    ['#ZhangYang', '4Guyun', 'Xiangpeng', ['alex', 'jack'], 'ChenRonghua', 'XuLiangChen']

  14. 复制

    # author = "zhuyouen"
##浅copy
person=['name',['saving',100]]

'''
p1=copy.copy(person)
p2=person[:]
p3=list(person)
'''
p1=person[:]
p2=person[:]
p1[0]='alex'
p2[0]='fengjie'
p1[1][1]=50

print(p1)
print(p2)

元组tuple

另一种有序列表叫元组：tuple。tuple和list非常类似，但是tuple一旦初始化就不能修改。

    # author = "zhuyouen"
    name=('alex','jack')
    name[1]='123'
    print(name)

    D:\python35\python.exe D:/PycharmProjects/zhuyouen/0404/tuple.py
    Traceback (most recent call last):
      File "D:/PycharmProjects/zhuyouen/0404/tuple.py", line 3, in <module>
        name[1]='123'
    TypeError: 'tuple' object does not support item assignment
posted @ 2017-04-03 20:01  三个字  阅读(318)  评论(0)  编辑  收藏  举报