你可以用。 比如;
>>> print 'We are the {0} who say "{1}!"'.format('knights', 'Ni')
We are the knights who say "Ni!"
括号内的字符(称为格式字段)被替换的对象。{}括号中的数字是指替换的位置,里面的数字,比如0,1表示替换元组的索引位置。
>>> print '{0} and {1}'.format('spam', 'eggs')
spam and eggs
>>> print '{1} and {0}'.format('spam', 'eggs')
eggs and spam
如果使用关键字参数的格式方法,其值被称为使用的参数名称。
>>> print 'This {food} is {adjective}.'.format(
... food='spam', adjective='absolutely horrible')
This spam is absolutely horrible.
下面是位置和关键字参数的任意组合:
>>> print 'The story of {0}, {1}, and {other}.'.format('Bill', 'Manfred',
... other='Georg')
The story of Bill, Manfred, and Georg.
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