>> 9//24>>> 9.0//2.04.0>>> 9.0//2.53.0>>> 9.0//2.43.0>>> 9.0//2..."/>
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數(shù)據(jù)運(yùn)算:
+ - * / % ** // 取整數(shù),返回商的整數(shù)部分,如9/2輸出結(jié)果4,9.0/2.0輸出結(jié)果4.0
>>> 9//2
4
>>> 9.0//2.0
4.0
>>> 9.0//2.5
3.0
>>> 9.0//2.4
3.0
>>> 9.0//2.3
3.0
>>> 9.0//2.2
4.0
>>> 9.0//2.1
4.0
>>>
==
!= <>
>
<
>=
<=
賦值:
=
+=
-+
*=
/=
%=
**=
//=
邏輯運(yùn)算:
and
or
not
>>> a,b,c = 3,5,7
>>> print(a,b,c)
3 5 7
>>> a > 2 and c < 7
False
>>> a > 2 and c < 8 and b > 4
True
>>> if not a > 2 and c < 8 and b > 4:
... print('bbb')
...
>>> if not a < 2 and c < 8 and b > 4:print('bbb')
...
bbb
>>>
成員運(yùn)算:
in
not in
身份運(yùn)算:
is #判斷兩個(gè)標(biāo)識符是不是引用自同一個(gè)對象
is not
>>> a = [1,2,3]
>>> type(a) is list
True
>>> type(a) is not list
False
>>> "abc" is "abc"
True
>>> "abc" is "abcd"
False
>>>
位運(yùn)算:二進(jìn)制的運(yùn)算
& 按位與
| 按位或
^ 按位異或
~ 按位取反
<< 左移動
>> 右移動
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