chromecast operation

=$_request[' Zhword '];if (!empty ($enword) !empty ($zhword)) {Get root node$root = $doc->getelementsbytagname ("words")->item (0);$word = $doc->createelement ("word");$en = $doc->createelement ("en", $enword);$zh = $doc->createelement ("en", $zhword); to mount $root->appendchild ($word);$word->appendchild ($en);$word->appendchild ($ZH); Save XML file$doc->save ("Words.xml");echo "Add success }else{echo "Please enter a word";echo "Exit ();}}else if ($type = = "Delete") {$word =$_request[' word

GIT basic Operations Command, temporarily only the most basic operation, excerpt from the first line of code. install Ubuntu system to open the Shell interface, enter: sudo apt-get install git-core windows system to download the website. URL: http://msysgit.github.io/Initial initial configuration user name, mailbox: git config--global user.name "Tony" git config--global user.email "tony@gmail.com" to see if the configuration was successful (remove th

Command-line operations (because they are normal users under the Linux command line, they operate at the $ level): I. Native configuration Add usergit config–global user.name "XX"git config–gloaba user.email "XX@163.com" View git configuration and user informationgit config–list generates SSH secret key (2 ways: 1.git GUI graphical interface operation; 2.git command, that is, the following process)1 See if there is a secret key, then back up and then

directory, file operation details-php Write a file and read the file in the same way, first see if you can write: $file = ' dirlist.php ';if (is_writable ($file) = = False) {Die ("I am chicken feathers, I cannot");}?> If you can write it, you can use the File_put_contents function to write: $file = ' dirlist.php ';if (is_writable ($file) = = False) {Die (' I'm chicken feathers, I can't ');}$dat

database additions and deletions to check curd operation Add Data return bool //$bool = Db::insert (' INSERT into student (Name,age) VALUES (?,?) ', [' Imooc ',]); Var_dump ($bool); Update data //$num = db::update (' update student set age =? WHERE name =? ', [, ' Sean ']); Var_dump ($num); Query data //$students = Db::select (' select * from student where ID >? ', [1001]); DD ($students); Delete data $num = DB::d elete (' Delete from student whe

#!/usr/bin/env python#-*-coding:utf-8-*-import mysqldb# Establish Connection conn = MySQLdb.connect (host= ' 127.0.0.1 ', user= ' root ', Passwd= ' 1qaz#edc ', db= ' test_db ') cur = conn.cursor () #对数据进行操作sql = "Update user set name=%s where id=7" #定义sql语句, Used to modify the name field with ID 7 params = ("Zhongjw",) #修改为 "ZHONGJW" Cur.execute (sql,params) Conn.commit () #提交请求 # Close database connection Cur.close () Conn.close ()This article is from the "Fait-Q Group: 223843163" blog, please

and Operation:Both are 1 to 1, otherwise 0 11=1, 10=0, 01=0, 00=0 Or operation: |Both are 0 to 0, otherwise 11|1 = 1, 1|0 = 1, 0|1 = 1, 0|0 = 0 Non-operation: ~1 Take 0, 0 take 1~ = 0, ~0 = 1~ (10001) = 01110 XOR or operationEqual to 0, unequal to 1.1^1=0, 1^0=1, 0^1=1, 0^0=0 The following is a detailed explanation: bit OperationsThe operation component of

SQL query operation process and SQL operation processHere we can see the Query Processing of SQL in the book. In SQL, the query is achieved through the select statement and some auxiliary clauses. Here mysql is used. First, to understand the difference between a physical table and a virtual table, a physical table is one or more files stored in a file system. Each row of data is stored according to the corr

+ + self-increment front: First operation after the value a=3; B=++a; a=4; b=4;+ + + self-increment: First take value after Operation A=3; b=a++; a=4; b=3;--self-reducing pre-set: First operation after the value a=3; b=--a;a=2;b=2;--Self-reduction after: the first value after the Operation A=3;b=a--;a=2;b=3;The precedi

Web page Production WEBJX article introduction: the operation of Internet products. Yesterday at the annual meeting of the UCDChina2010 year, generally similar to such a conference, the workshop is often the most harvested, because the actual operation of the simulation, or some of the more enforceable methods to share. In fact, training and reading, learning (read) feel very right, But how to r

Arithmetic operation and logical operation of image in OpenCVIn the image processing, there are two most important basic operations are image point operation and block operation, the simple point is that the image point operation is the image of each pixel point of the relev

Open statistics: the key to enabling fine-grained App operation and fine-grained app operationData is the lifeline and the most important intangible asset for companies, small and medium-sized entrepreneurial teams, and individual developers. Currently, App development is increasingly dependent on data support. Most developers use data as the basis for product decision-making, operation decision-making, and

Website Operation | Problem a large website project operation, inseparable from a team of close collaboration. In this team, it consists primarily of two parts of operations and development. However, in many aspects, such as experience, job role and cognition level, there are great differences between operators and developers, which will lead to contradictions and conflicts in the planning, development and

[to] the difference between the modulo operation and the remainder operationIn general, modulo operations (mods) and Redundancy (REM) operations are confused because in most programming languages, the '% ' notation is used to denote modulo or remainder operations. Here to remind you to pay great attention to the specific meaning of the '% ' operator in the current environment, because in the case of a negative existence, the results are different.For

In the near future, for the 2016 fresh production of the training materials, in the Learning forum after the great God's article, deep feelings, the operation of the world fascinated and charmed, but there are also elusive place, so I was in the pen to make training materials, The principle is that every fresh graduate can understand the concept of operation and knowledge system, and have interest in it, wh

JavaScript = operation details, javascript Operation Details As you know, = in JavaScript is a complicated operation. Its operation rules are very strange and easy to make mistakes, making it one of the "worst features" in JavaScript. After carefully reading the ECMAScript specification, I drew a picture. After underst

website operation and network operation is only one word difference, so it is very easy to confuse. Website operation refers to the product management, content operation, content update, marketing and other related operation management of Internet site. In a broad sense, in

Big integer algorithm [04] bit operation, integer algorithm 04 operation The previous article introduced the comparison of big integers. Today we will talk about bit-related operations. ★Introduction This article describes how big integers are represented by big integers. In order to facilitate the subsequent explanation, we first give an example of a large integer according to the previous definition (in

PV operation of the operating systemToday in the operating system teacher assigned operating system operations, but encountered a problem with the PV operation, because the understanding of the PV operation is not very thorough, so I consulted a lot of information, the following simple introduction of the popular PV operation