( ) . 2 + 3. .
, + . , . , 2 3 .
.
, . , 2 + 3 , :
>>> 2 + 3
5
>>> 3 * 5
15
>>>
:
+()-
3 + 58.'' + ''''.
-()- ; , .
-5.2 .50 - 2426.
*()- .
2 * 36.'' * 2''.
**()- -
3 ** 481(3 * 3 * 3 * 3)
/()- - -
13 / 34.333333333333333
//( )- - - , . , .
13 // 34-13 // 3-59//1.814.0
%()-
13 % 31.-25.5 % 2.251.5.
<<( )- , . ( 0 1 )
2 << 28.210 .- 2 , 8
1000 .
>>( )- , .
11 >> 15.11 1011, 101 , 5.
&( )- :
1 , 1 . , 0 . 5 & 31(0101 & 00110001)
- :
|( )- :
0 , 0 . , 1. 5 | 37(0101 | 00110111)
- :
^( )- : (
1 0) , 0. , 1. 5 ^ 36(O101 ^ 00110110)
- : (
~( )- -(+1)
~5-6. http://stackoverflow.com/a/11810203
<()- , - .
TrueFalse . . 5 < 3False3 < 5True.- :
3 < 5 < 7True.
- , - .
>( )- , - .
5 > 3True. , . , False.
<=( )- - .
= 3; = 6; <= True
>=( )- - .
= 4; = 3; >= 3True
==()-
= 2; = 2; == True = 'str'; = 'stR'; == False = 'str'; = 'str'; == True
!=()-
= 2; = 3; != True
not( )-
True, False- . False, True- . = True; not False.
-
and( ) and False, False False, = False; = True; and False False . , - , 'and' False , False . .
or( )-
True, True , - . = True; = False; or True. .
-
, , , :
= 2
= * 3
:
= 2
*= 3
= = .
2 + 3 * 4 , ? , . , .
, , ( ) ( ) . , , , .
, . , . . , .
lambda: if - else: or: and: not : in, not in, is, is not, <, <=, >, >=, !=, ==: |: ^: &: <<, >>: +, -: *, /, //, %: , , +, -, ~: , , **: [], [:], (...), .: , , , (...), [...], {: ...}, {...}: , , ,
.
. , + - .
, . , 2 + 3 * 4 , 2 + (3 * 4) . , ( ) (2 + (3 * 4)) .
- . , , (2 + 3) * 4.
. , . , 2 + 3 + 4 (2 + 3) + 4 .
(.py ):
= 5
= 2
= *
print(' ', )
print(' ', 2 * ( + ))
:
$ python .py
10
14
. , . * , print . , 2 * ( + ) .
, . ' '- , . , . , ( ). .
, - . , .