#通過位置
print '{0},{1}'.format('chuhao',20)
print '{},{}'.format('chuhao',20)
print '{1},{0},{1}'.format('chuhao',20)
#通過關(guān)鍵字參數(shù)
print '{name},{age}'.format(age=18,name='chuhao')
class Person:
  def __init__(self,name,age):
    self.name = name
    self.age = age
  def __str__(self):
    return 'This guy is {self.name},is {self.age} old'.format(self=self)
print str(Person('chuhao',18))
#通過映射 list
a_list = ['chuhao',20,'china']
print 'my name is {0[0]},from {0[2]},age is {0[1]}'.format(a_list)
#my name is chuhao,from china,age is 20
#通過映射 dict
b_dict = {'name':'chuhao','age':20,'province':'shanxi'}
print 'my name is {name}, age is {age},from {province}'.format(**b_dict)
#my name is chuhao, age is 20,from shanxi
#填充與對(duì)齊
print '{:>8}'.format('189')
#   189
print '{:0>8}'.format('189')
#00000189
print '{:a>8}'.format('189')
#aaaaa189
#精度與類型f
#保留兩位小數(shù)
print '{:.2f}'.format(321.33345)
#321.33
#用來做金額的千位分隔符
print '{:,}'.format(1234567890)
#1,234,567,890
#其他類型 主要就是進(jìn)制了，b、d、o、x分別是二進(jìn)制、十進(jìn)制、八進(jìn)制、十六進(jìn)制。
print '{:b}'.format(18) #二進(jìn)制 10010
print '{:d}'.format(18) #十進(jìn)制 18
print '{:o}'.format(18) #八進(jìn)制 22
print '{:x}'.format(18) #十六進(jìn)制12