列表，元组，字典，字符串。

#! /usr/bin/env python

n = ['mark','kevin','henry','david']
print(n[-1])
print(n[-2])
print(n[0:3])
print(n[3:])
print(n[0::2])
n.append('fresh')
print(n)
n.insert(1,'newone')
print(n)
n[2]='kevinxia'
print(n)
del n[1]
print(n)
n.remove('henry')
print(n)
a = [1,2,3]
n.extend(a)
print(n)
n_copy = n.copy()
print(n_copy)
print(n.count('mark'))
n[-1]='3'
n[-2]='2'
n[-3]='1'
print(n)
n.sort()
print(n)
n.reverse()
print(n)
print(n.index('mark'))

david
henry
['mark', 'kevin', 'henry']
['david']
['mark', 'henry']
['mark', 'kevin', 'henry', 'david', 'fresh']
['mark', 'newone', 'kevin', 'henry', 'david', 'fresh']
['mark', 'newone', 'kevinxia', 'henry', 'david', 'fresh']
['mark', 'kevinxia', 'henry', 'david', 'fresh']
['mark', 'kevinxia', 'david', 'fresh']
['mark', 'kevinxia', 'david', 'fresh', 1, 2, 3]
['mark', 'kevinxia', 'david', 'fresh', 1, 2, 3]
1
['mark', 'kevinxia', 'david', 'fresh', '1', '2', '3']
['1', '2', '3', 'david', 'fresh', 'kevinxia', 'mark']
['mark', 'kevinxia', 'fresh', 'david', '3', '2', '1']
0

#! /usr/bin/env python

name = "my name is mark"
print(name.capitalize())
print(name.casefold())
print(name.center(50,"-"))
print(name.count('m'))
print(name.endswith('rk'))
print(name.find('n'))

msg = "my name is {name},and age is {age}"
print(msg.format(name='mark',age=23))
print(msg.index('a'))
print("|".join(['mark','kevin','who']))
print('mark is mine'.split())
print('1+2\n+3+4'.splitlines())
print('Mark Stone'.swapcase())
print('alex lil'.title())

My name is mark
my name is mark
-----------------my name is mark------------------
3
True
3
my name is mark,and age is 23
4
mark|kevin|who
['mark', 'is', 'mine']
['1+2', '+3+4']
mARK sTONE
Alex Lil

 

#! /usr/bin/env python

info = { 'stu001':'mark',
         'stu002':'kevin',
         'stu003':'henry',
    }
info['stu004'] = 'xuyj'
print(info)
info['stu001'] = 'marks'
print(info)
info.pop('stu004')
print(info)
del info['stu003']
print(info)
print(info.get('stu001'))
print(info['stu001'])

{'stu001': 'mark', 'stu002': 'kevin', 'stu003': 'henry', 'stu004': 'xuyj'}
{'stu001': 'marks', 'stu002': 'kevin', 'stu003': 'henry', 'stu004': 'xuyj'}
{'stu001': 'marks', 'stu002': 'kevin', 'stu003': 'henry'}
{'stu001': 'marks', 'stu002': 'kevin'}
marks
marks