标签：font print pytho form log his 格式化输出 格式化 操作
1."{},{}".format(,)用法总结：
‘{0},{1}‘.format(‘var1‘,132908)
‘var1,132908‘
‘{},{}‘.format(‘var1‘,132908)
‘var1,132908
‘{0},{1},{1},{0}‘.format(‘var1‘,132908)
‘var1,132908,132908,var1‘
2.关键字参数：
‘{name},{age}‘.format(age=18,name=‘wangchao‘)
‘wangchao,18‘
class Person:
def __init__(self,name,age):
self.name,self.age = name,age
def __str__(self):
return ‘This book is {self.name},is {self.age} old‘.format(self=self)
print Person(‘wangdage‘,18)
This book is wangdage,is 18 old
p=[‘wanghhao‘,18]
‘{0[0]},{0[1]}‘.format(p)
‘wanghhao,18‘
3."%s"%()形式：
print"I‘m %s. I‘m %d year old" % (‘cobe‘, 99)
I‘m cobe. I‘m 99 year old
print "I‘m %(name)s. I‘m %(age)d year old" % {‘name‘:‘coolbe‘, ‘age‘:99}
I‘m coolbe. I‘m 99 year old
总结：
Python中除了内置的%操作符可用于格式化字符串操作，还有"".format()的形式,都需要熟练掌握
标签：font print pytho form log his 格式化输出 格式化 操作
原文地址：http://www.cnblogs.com/wc554303896/p/7074442.html
