Python

1 #the process of creating a class:2 #Create an Object3 #automatically call the __init__ method to get the basic properties.4 #returns a reference to the created object to the current instance.5 6 7 classHome:8 #Initialize Definition Properties9

The metacharacters. ^ $ * + ? {}. The match is: If a match is written to a point, if you match more than one word, write a few dots >>> a = re.findall (' b...dd ', ' BSSSDD ') >>> print (a) [' BSSSDD '] such as: > A = Re.findall (' B.. DD ', '

1. Is and = = DifferenceID () functionSmall Data pool (constant pool): Store the values we have used in the? Small data pool. For other variable quantities.Small data pools are used for numbers and strings, and other data types do not exist.For

Function: The return value can be called at any place where it is needed after it has been defined 3 cases:1: no return valueDo not write returnWrite-only Rerurn: End a continuous functionReturn None2: Returns a value3: Returns multiple values

"Ython Regular Expression． All characters except line break\d match all numbers\d matches all non-digital\s matches all whitespace characters\s matches non-whitespace characters\w matches A- z,A-z,0-9,_\w matches non-a- z,A-z,0-9,_\d{m} matches m

Dictionary DictSet the dictionary toDIC = {"name":"andraw"}A, increase1, increase the key value pair, increase the key value to Address:guangdong in the dictionary dicdic["address""Guangdong"2, increase by SetDefault method, add key value to Address:

Conclusion:The request and response of the 1.requests module has a cookie object, respectively. You can set and get cookies from this object.2. Pass the cookie dictionary parameter in the Requests.get,requests.post and other method request only for

Last week Egon teacher left the shadow has not dispersed, a blink of an eye and ushered in the day of class, originally and coworkers about to go to the day of CCG, also can only be prepared for the nutrition of the fast line to give them, let them

Daily Chicken Soup:I still have a 2w loan and I don't have to ...First, what is a functionFunctions are the encapsulation and definition of code and functionality.1. How to define a function1 def function name (): 2 function Body 3456# The

process: loads a program into memory and allocates memory resources for it to execute, which is called a process and a process is a collection of resources.The difference between a program and a process is that a program is a set of instructions,

JSON is a type of data that is actually a string that exists in the form of Key-value. And it's in the form of double quotes.For example: info = {"Name": "Eldest brother", "sex": "Male"}#json is a string, which is look like a dictionaryThere are

#!/usr/bin/env python#coding:utf-8import osimport reimport sysnum = []game_gen_path = ‘/data/bz-tw-and/‘for dirs in os.listdir(game_gen_path): if re.match(‘s\d+‘,dirs): num.append(dirs[1:])number = sorted(map(int,num))def

The function of the @property is to run the decorated function directly, without parameters, and on the surface it is directly appended to the decorated function.classRoom:tag=1def __init__(Self,name,owner,width,length,heigh): Self.name=name

Python processing of data small script# -*- coding:UTF-8 -*-import osdef wenjchuli(file_path): with open(file_path) as f, open(file_path+".bak", ‘w‘) as f2: for line in f: if("Location" in line):

Python is an interesting module, bisect, it feels interesting, how interesting, below to give you the word.Our husband becomes a listdata=[4,8,7,1]data.sort ()Print this list[1,4,7,8]Import bisectImport BisectInserting dataBisect.insort

__author__ ="Yang Xin"Array=[]DefQuickSort (left,right): If left > right: Returntemp = Array[left]i = Leftj = Right While I If ARRAY[J] >= Tempand i #if J-1>=left:J-=1 If array[i] and i # if I+1i + =1 If I Tag = Array[i]Array[i] = Array[j]

Other properties or methods of the thread objectIntroduced:Thread instance object Method # isAlive (): Returns the thread is active # getName (): Returns the thread name # setnmae (): Sets the thread name threading module provides some

Basic data types Integer (int) Floating point (float) string   Any text enclosed in ' or '.   A. If ' itself is also a character, you can use ' in '     print ("I ' m ok!")   b. If both "can be escaped with \"     print ' i\ ' m \ "ok!

1, installation virtualenvpip3 install virtualenv2. create a virtual environment using the VIRTUALENV commandvirtualenv --no-site-packages -p /usr/local/python3/bin/python3 venv 没有类包的干净环境 指定python版本 环境地址3. Enter the virtual

#!/usr/bin/python#-*-Encoding:utf-8-*-#date: 20180516Random module method: Randomly generate the desired numbers, letters, etc." "The random function, which generates only numbers, is not an iterative object without a method. __iter__ ()"