python_108_格式化字符串format函数

#通过关键字映射

print('I am {name},age {age}'.format(name='qiqi齐',age=18))#I am qiqi齐,age 18

dictory={'name':'xiaozhi志','age':19}

s='{name} is {age} years old'.format(**dictory)

print(s)#xiaozhi志 is 19 years old

#通过位置映射

s1='I am {0},age {1},name {0}'.format('guang光',20)

print(s1)#I am guang光,age 20,name guang光

s2='I am {0},age {1},name {0}'.format(*["alex",22])

print(s2)#I am alex,age 22,name alex