Python - 1. Built-in Atomic Data Types

From:http://interactivepython.org/courselib/static/pythonds/Introduction/GettingStartedwithData.html

numeric classes

Python has two main built-in numeric classes that implement the integer and floating point data types.Note that when two integers are divided, the result is a floating point.

　　2. The boolean data type

>>> True

True

>>> False

False

>>> False or True

True

>>> not (False or True)

False

>>> True and True

True

In addition, relational operators and logical operators can be combined together to form complex logical questions.

Operation Name	Operator	Explanation
less than	< <	Less than operator
greater than	> >	Greater than operator
less than or equal	<= <=	Less than or equal to operator
greater than or equal	>= >=	Greater than or equal to operator
equal	== ==	Equality operator
not equal	!= !=	Not equal operator
logical and	and and	Both operands True for result to be True
logical or	or or	One or the other operand is True for the result to be True
logical not	not not	Negates the truth value, False becomes True, True becomes False

　　3. Identifiers

>>> theSum = 0

>>> theSum

0

>>> theSum = theSum + 1

>>> theSum

1

>>> theSum = True

>>> theSum

True

巴特西

Python - 1. Built-in Atomic Data Types

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