字符串格式化之百分号方式；format方式

s = 'I am %s,age%d' %('alex',18)
# print(s)

s = 'I am %(n1)s,age%(n2)d' %{'n1':'alex','n2':18}
print(s)

 

 

 

 

Format方式

 

 

s = 'I am {:.2%}s'.format(12)
print(s)