python加减乘除

>>> print (3//2)
1
>>> print (3**2)
9
>>> print (3/2);
1.5
>>> print (10/3);
3.3333333333333335
>>> print (10//3);
3
>>> print (10*3);
30
>>> print (10**3);
1000
>>> print (10+3);
13
>>> print (10+3-1);
12
>>> print (10+(3-5));
8
>>> print (10/(3-5));
-5.0
>>> print (10//(3-5));
-5
>>> print (10**(3-5));
0.01
>>> print (10*(3-5));
-20
>>> print (10**(3-5));
0.01
>>>