Python

#!/usr/bin/env python# coding:utf-8# auther:liangkai# date:2018/6/26 11:26# License: (C) Copyright 2013-2018, Node Supply Chain Manager Corporation limited.# describe:import pymysqlimport reimport datetimeimport sysimport time# DB variablesdbh ost =

Inheritance: Subclasses (derived classes) inherit everything from the parent class (the base class)The most important feature of inheritance: Save code; associated with other classes.Why can subclasses find all of the parent classes?Because the

#!/usr/bin/env python# coding:utf-8# auther:liangkai# date:2018/6/26 11:26# License: (C) Copyright 2013-2017, Node Supply Chain Manager Corporation limited.# describe:import pymysqlimport reimport datetime# DB variablesdbhost = "192.168.189.18 5

A decimal turn binaryDecimal integers are converted to binary integers using the "Divide 2, Reverse order" method. The specific method is: divisible by 2 decimal integers, you can get a quotient and the remainder, and then 2 to remove the quotient,

# WebSocket Implementation principle ' 1. The server opens the socket, listens on the IP and Port 2. Client sends connection request (with IP and port) 3. Server-side allow connection 4. The client generates a random string, and the magic string is

Project IntroductionTwo times development Uiautomatorviewer optimized locator generation, support the generation of Java,python Automation code, repair the self-brought tool screen has a dynamic load failure problem, optimize the tool speed, to

Previous: Leetcode Two and-pythonTitle: https://leetcode-cn.com/problems/add-two-numbers/description/A two non-empty list is given to represent two non-negative integers. The digits are stored in reverse order, with each node storing only a single

Def getText (): #赋予txt哈姆雷特小说-All English lowercase-full symbol variable space-Returns TXT txt = open (' Hamlet.txt ', ' R '). Read () #注意文本的路径 txt = Txt.lower () #文本字符全部转变为小写字母 for ch in '! ' #$%& () *+,-./:;[email protected][\\

Modifying the character Set global modificationClick WindowFor a particular projectRight-click to have an attribute propertesTo a file, that is, the front Plusis also right-click property, and this is not the point.#模块的和模块的常用方法 The crucial _

This article mainly introduces the Python file and directory operation methods, concise summary of the file and directory operations commonly used modules, methods, and listed a comprehensive example, the need for friends can refer to the

Python crawl China Weather Net weatherBased on the requests library production crawler.How to use: Open terminal input "Python3 weather.py Beijing (or your city)"Normal operation of the program needs to add a "data.csv" file under the same folder,

PolymorphicPolymorphism refers to a class of things that have many forms, such asAnimals have many forms: man, dog, pigImport Abcclass Animal (METACLASS=ABC. Abcmeta): #同一类事物: Animal @abc. Abstractmethod def talk (self): passclass

One, module conceptIn the process of computer program development, as the program code more write more, in a file code will be more and more long, more and more difficult to maintain. In order to make the code easier to maintain, we grouped many

Because the company is using VMware virtualization technology, each time the virtual machine to allocate a connection to the external network IP address, in addition to the company scale, the new people also need to assign IP address, it is easy to

Get basic information about an elementGet text contentJudging whether it is visibleDetermine if it is operableGet the attributes of an elementGets the value of the element CSSClear ContentInput contentSingleDouble click1. Get Elemental Basic

#-*-coding:utf-8-*-#@Author: FELIX#@Date: 2018/6/30 9:20 fromPypinyinImportPinyin, Lazy_pinyin, Style, load_phrases_dict, Load_single_dict fromPypinyin.styleImportRegisterPrint(Pinyin ('Hello'))#[ [' nǐ '], [' Hǎo ' ]Print(Pinyin ('Center',

Transferred from: https://www.cnblogs.com/wangyayun/p/6699184.html?utm_source=tuicool&utm_medium=referralShows you how to encode and decode JSON objects using the Python language.JSON (JavaScript Object Notation) is a lightweight data interchange

01_linux Foundation1. What is the role of the operating system?The operating system is the first layer of software configured on the computer hardware, the main role is to manage the hardware devices.What are the 2.Linux root directories and home

First, XPath basic positioning usage1.1 Using ID to locate--driver.find_element_by_xpath ('//input[@id = "kw"])　　1.2 Using class positioning-driver.find_element_by_xpath ('//input[@class = "S_ipt"]　　1.3 Of course, through the usual 8 ways of

Tag: http hit Har skips him also alias RET 3.1I am blowing air conditioning, drinking tea, and then QQ head shook twice, business development classmates gave me a greeting, "Busy?" Can you do me a favor? "It's obvious, it's going to be busy!" To