Day4-python Base-Operator

This section mainly describes the Python operators. To give a simple example 4 +5 = 9 . In the example,4 and 5 are called operands , and "+" is called an operator.

The Python language supports the following types of operators:

• Arithmetic operators
• Compare (relational) operators
• Assignment operators
• logical operators
• Bitwise operators
• Member operators
• Identity operator
• Operator Precedence

The following hypothetical variables: a=10,b=20: Arithmetic operations:

Comparison operation:

Assignment operation:

Logical operation:

Member Operations:

Identity operation:

Bit operations:

Example

1 #!/usr/bin/python2 #-*-coding:utf-8-*-3  4A = 60#= 0011 11005b = 13#= 0000 11016c =07  8c = A & B;#0000 11009 Print "the value of the 1-c is:", CTen   Onec = A | b#1101 = 0011 A Print "the value of the 2-c is:", C -   -c = a ^ b;#0001 = 0011 the Print "the value of the 3-c is:", C -   -c = ~a;#-61 = 1100 0011 - Print "the value of the 4-c is:", C +   -c = a << 2;#0000 = 1111 + Print "the value of the 5-c is:", C A   atc = a >> 2;#= 0000 1111 - Print "the value of the 6-c is:"C

The result of the above example output:

The value of the 1-C is: The value of 122-C is: The value of 613-C is: The value of 494-C is: -615-c value is: 15

　　

Operator Precedence:

The operators are about this much, more details see HTTP://WWW.RUNOOB.COM/PYTHON/PYTHON-OPERATORS.HTML#YSF1

Day4-python Base-Operator