python笔记2

元组

>>> t=("milo",30,"male")
>>> t[0]
'milo'
>>> t[1]
30
>>> t[2]
'male'

注意元组只有一个元素时，后面有一个分号，
t1=(2,)
赋值

>>> t
('milo', 30, 'male')
>>> name,age,gender=t
>>> name
'milo'
>>> age
30
>>> gender
'male'

2.列表
列表组成用[]

>>> list1=["Simon","David","Clotho","张三"]
>>> list2=[1,2,3,4,5]
>>> str1="abcd"
>>> str2="efgh"
>>> str3="ijkl"
>>> str4="wxyz"
>>> list3=["str1","str2","str3","str4"]
>>>list3[0]
str1    //跟元组相同

    向列表中添加值 list3.append("12345678")

>>> list3
['abcd', 'efgh', 'ijkl', 'wxyz']
>>> list3.append("12345678")
>>>list3
['abcd', 'efgh', 'ijkl', 'wxyz', '12345678']

删除一个值
list3.remove('12345678')

>>> list3[3]('wxyz')
    >>> list3
    ['abcd', 'efgh', 'ijkl', 'wxyz'

重新赋值