Python

1, callable function introductionDescribes any object as a parameter, returns TRUE if the Parameter object is callable, or false otherwise.In [1]: Import stringIn [3]: String.punctuationOUT[3]: '! ' #$%&\ ' () *+,-./:;[email protected][\\]^_ ' {|}

Import Os,platform,uuid,urllib.parse,urllib.request,jsondef beforesystemrequests (): "The SystemInfo uploads to AP I of.. "Def get_system_version (): System_name = Platform.system () if system_name = = ' Windows ' and os.name = = ' NT ':

Help on built-in function range in Module __builtin__:range (...) Range (stop), list of integers range (start, stop[, Step)), List of integers Return A list containing an A Rithmetic progression of integers. Range (I, j) returns [I,

The spring breeze is warm, slightly has a little indisposition. If the heart is safe, everything is fine. It's a beautiful thing to be able to fight with loved ones.---aaron.shenMay 15 SunnyThe main contents of today's class are as follows:1,

name =  "AAA,BBB,CCC" Name2 = name.split (",")        Comma-separated as an array name.strip ()          Delete the character at the beginning and end of the name string, the default is space  tab    Line Print (Name.center (+, "-"))       40- 

I. INTRODUCTIONA regular expression (or RE) is a small, highly specialized programming language (in Python) that is embedded in Python and implemented through the RE module and then compiled into a series of bytecode that is then executed by a

One of the two ways to execute a python script? Written directly in the interpreter and executed in the interpreter. Files are written and executed in a way that the terminal uses the Python path 　Well, let's compare the

Introduction to Object-oriented technology class: used to describe a collection of objects that have the same properties and methods. It defines the properties and methods that are common to each object in the collection. An object is an

What is JSON:JSON (JavaScript Object Notation) is a lightweight data interchange format. Easy for people to read and write. It is also easy for machine parsing and generation. It is based on JavaScript programming Language, Standard ECMA-262 a

Introduction to the Python Regular expression module (re)Python's Re module (Regular expression regex) provides matching operations for a variety of regular expressions, similar to the regular expression functionality of Perl scripts, using this

This article is Bo Master original essay, when reproduced please indicate the source maple2cat| Python crawler Learning: Three, the basic operation and flow of reptilesIn general, we use Python crawlers to achieve a complete set of functions, as

Input and raw_input can be used to read the console inputs, and input () can only accept int,float or an expression consisting of them:1Python 2.7.5 (Default, Mar 19 2014, 07:24:16) 2[GCC 4.5.4] on linux23Type" Help","Copyright","credits" or

"Hello World"    1 # ! /usr/bin/env python2 # -*-coding:utf-8-*-3 4 Print ('hello,world')when the line stares: # is annotated contentMultiline Comment: "" "Annotated Content" "" "Print user input user name and password"     1 a1 =

Python's Process Control statements1. Conditional statements An If expression: code blocki=10if i > 5: print("bin go") bin goWhen the expression after the if is true, the code block executes, and if False is false, the code block

#-*-Coding:utf-8-*-#Author: Gxli#字符串的操作Name= ' Zhangsan,lisi,wangwu '#分割操作Name=name.split (', ')Print (name) #[' Zhangsan ', ' Lisi ', ' Wangwu ']#列表转字符串拼接Name= ' | '. Join (name)Print (name) # ZHANGSAN|LISI|WANGWU#去除开头结尾制定字符Name2= ' LGX 'Name2=name2

Map (), reduce (), filter, and pythonreduce in python It is said that it is a function in functional programming (and some tucao py is not suitable for doing this). In my opinion, it is a method of pythonic. This simplifies our operations. For

A Brief Introduction to Python decorators and a brief introduction to python def log(func): def wrapper(*args, **kw): print '===call %s():' %func.__name__ return func(*args, **kw) return wrapperdef logWithParam(text): def

Python BASICS (II): python BasicsVariable Another way to assign values to variables user = 'ljb'passwd = 'ljb123'user,passwd = 'ljb','ljb123'    Constant Uppercase variable MYSQL_CONNECTION = '192.168.1.1'  Pyc File After the import module, the pyc

First knowledge of python (1), first knowledge of python 1. Introduction to python Python is an object-oriented, literal translation computer programming language. It is also a powerful and complete general-purpose language with more than a decade

Python string common operation method, python string Common Operations for python string operations, such as replacement, deletion, interception, replication, connection, comparison, search, and splitting of strings. For more information, see. 1.