Python：整数前的点是什么意思？

Question

I was reading some Python code:

math.ceil(.1) + math.floor(.1)

and have encountered the following notation - .1 .

Could someone explain what does it mean?

Thanks in advance.

Answer 1

The integer is a float (decimal) value

>>> .1
0.1
>>> 1
1

As Shashank V 's answer notes , one can can check the type of an object by calling type() on it!

>>> type(.1)
<class 'float'>
>>> a = .1
>>> type(a)
<class 'float'>

Answer 2

.1 是一个浮点数，相当于 0.1

Answer 3

It's a float. .1 represent the decimal value 0.1

>>> type(.1)
<class 'float'>

https://docs.python.org/3/tutorial/floatingpoint.html