1、在处理布尔型或者数字型时，二者是没有区别的
(1)数字型

'I am %r years old'%22#%r 

‘I am 22 years old’

'I am %s years old'%22#%s

‘I am 22 years old’

'This building is %r m tall'%22.35#%r

‘This building is 22.35 m tall’

'This building is %s m tall'%22.35#%s

‘This building is 22.35 m tall’
(2)布尔型

text=False
print('I said this is  %r'%text)# %r

I said this is False

text=False
print('I said this is  %s'%text)#%s

I said this is False
2、在处理字符串型时，%r相比于%s多输出引号

text='this building is very tall'
print('I said this is  %r'%text)#%r

I said this is ‘this building is very tall’

text='this building is very tall'
print('I said this is  %s'%text)#%s

I said this is this building is very tall