My Python growth path---first day---python Basics (4)---December 26, 2015 (haze)

Data operations and data operators

Arithmetic operators

Arithmetic operators

Operator	Describe	Example
+	Addition	>>> 14-5 9
-	Subtraction	>>> 14-59
*	Multiplication	>>> 5 * 1470
/	Division	>>> 14/52.8
%	Modulo, that is, two of the number of quotient of the remainder of the part	>>> 14% 54
**	Power operation	>>> 2 * * 38
//	The integer portion of a quotient that returns two numbers.	>>> 10//33

Comparison operators: Comparison operators are not limited to numbers, strings, lists, etc.

comparison Operators

Operator	Describe	Example
==	Determines whether two objects are equal (equal returns TRUE, not equal returns false)	' ABC ' ' ABC ' True
!=	Determines whether an object is not equal (as opposed to = =, returns false for equality, not equal returns True)	>>> 1! = 2True
<>	Determine if an object is not equal (IBID., but not recommended)
>	Determines whether the first object is greater than the second object, greater than return true, not greater than (including equals) returns Fasle	>>> 3 > 1True
<	Determines whether the first object is less than the second object, is less than the return true, and is not less than (including equals) returned Fasle	>>> 3 < 4True
>=	Returns True if the first object is greater than or equal to the second object, or False if it is greater than or equal to	>>> 3 >= 3True
<=	Returns False if the first object is less than or equal to the second object, less than or equal to true.	>>> 3 <= 4True

Assignment operators: assigning operations

Assignment operators

Operator	Describe	Example
=	Assign value	A = C
+=	Self-added assignment A + = 1 equivalent to a = a + 1	A + = 1
-=	The self-decrement assignment A-= 1 is equivalent to a = A-1	A-= 1
*=	Squared assignment A *= 1 is equivalent to a = a * 1	A *= 1
/=	A/= 1 equivalent to a = A/1	A/= 1
%=	Pickup mode assignment a%= 1 equivalent to a = a% 1	A%= 1
**=	Self-seeking power assignment a **= 1 is equivalent to a = a * * 1	A**= 1
//=	Self-divisible assignment a//= 1 is equivalent to a = A//1	A//= 1

Bitwise operators: logical calculations by bits

Bitwise operators

Operator	Describe	Example
&	Bitwise-AND	>>> 5 & 144
|	Bitwise OR	>>> 5 | 1415
^	XOR or	>>> 5 ^ 1411
<<	Move left	>>> << 256
>>	Move right	>>> >> 23

My Python growth path---first day---python Basics (4)---December 26, 2015 (haze)