python2

C:\Users\chenjun>python
Python 2.7.12 (v2.7.12:d33e0cf91556, Jun 27 2016, 15:24:40) [MSC v.1500 64 bit (
AMD64)] on win32
Type “help”, “copyright”, “credits” or “license” for more information.
>>> 0/200 + 1
1
>>> 1/200 + 1
1

python3

C:\Users\chenjun>python3
Python 3.6.1 (v3.6.1:69c0db5, Mar 21 2017, 17:54:52) [MSC v.1900 32 bit (Intel)]
on win32
Type “help”, “copyright”, “credits” or “license” for more information.
>>> 0/200 + 1
1.0
>>> 1/200 + 1
1.005

在python2,/只留下了整数部分,去掉了小数,是int型。
在python3里,/的结果是真正意义上的除法,结果是float型。所以便出现了Error Message: ‘float’ object cannot be interpreted as an integer。


 python3中用双//就可以了

 

参考:https://blog.csdn.net/amoscn/article/details/78321137

Logo

CSDN联合极客时间,共同打造面向开发者的精品内容学习社区,助力成长!

更多推荐