Python 中 format 函数用法

通过 index 即位置

>>> print('This is a {0} about {1}'.format('example', 'format'))
This is a example about format

另一个例子:

>>> print('{0} two three three two {0}'.format('one'))
one two three three two one

若不输入数字，则按顺序填充。

>>> print('{} two three three two {}'.format('one', 'one'))
one two three three two one

通过 keys 关键词

>>> print('My name is {name}, a {identity}'.format(name='Jie', identity='student'))

通过下标

>>> data = ['Jie', 'student']
>>> print('My name is {0[0]}, a {0[0]}'.format(data))