零基础入门学习python-----读书笔记（三）

>>> "{0} is {1}.{2}".format("This", "python", "org")　　#将括号内部的字符进行替换,其中0，1，2表示的是位置参数
‘This is python.org‘

>>> "{a} is {b}.{c}".format(a="This", b="python", c="code")　　#‘a‘,‘b‘,‘c‘表示的是关键字参数，这两种参数可以混合使用，但是位置参数必须在前面
‘This is python.code‘

>>> list = [1, 2, 4, 3, 7, 5]
>>> for each in reversed(list):
    print(each, end = ‘,‘)

5,7,3,4,2,1,

>>> str = "Learn"
>>> for each in enumerate(str):
    print(each)

    
(0, ‘L‘)
(1, ‘e‘)
(2, ‘a‘)
(3, ‘r‘)
(4, ‘n‘)

>>> list = [1, 3, 5, 7, 9]
>>> str = "Learn"
>>> tuple = (2, 4, 6, 8, 10)
>>> for each in zip(list, str, tuple):
    print(each)

    
(1, ‘L‘, 2)
(3, ‘e‘, 4)
(5, ‘a‘, 6)
(7, ‘r‘, 8)
(9, ‘n‘, 10)