ergo posture

Knowledge Source: "Pen calligraphy elaborate grip pen posture" http://v.youku.com/v_show/id_XNDAxNTUwMTQw.html#pactionFirst, about the position of the pen gripDetail 1: The little finger of the first joint below to all the arms, and desktop contact place, all naturally affixed to the desktop.Detail 2: The finger bends naturally, do not buckle The palm, refers to the real palm virtual.Detail 3: The wrist valgus, should not be the wrist and arm in a str

Front-end ajax interaction posture and backend interaction posture Ajax is usually used to exchange data with the backend. However, there are many ways to interact, many of which depend on the attributes of your backend. Here I mainly list the two methods that are commonly used in my current project. -- One is our general web api and controller, First, let's take a closer look at the interaction data betwee

The rapid popularization of computers, so that people will be more and more work on the computer to complete, all walks of life, especially the program developers, writing workers, the working time on the computer more and more long, in this case the bad posture of the neck and shoulder lumbar spine will have a great impact, prone to the occurrence of a variety of diseases. The age of adolescent exposure to computers is getting smaller, and maintainin

Tags: prevent Apple from having a color file for a service-side TedD Shield old version:00 PrefaceD Shield _iis Firewall, currently only support Win2003 server, the former saw the official blog said D Shield new version will be launched recently, I believe that the function will be more powerful, this side to share the previous SQL injection defense test situation. D-Shield _iis firewall injects defensive strategies, such as, primary defense Get/post/cookie, files allow whitelist settings.Constr

Keywords: camera posture estimation Opencv::solvepnp LabVIEW three-dimensional imageArticle Type: Application Showcase +demo Demo@Author: vshawn ([email protected])@Date: 2016-12-12@Lab: [Email protected]ObjectiveThis article will show a real-time camera posture estimation routines, the principle of which has been mentioned in the previous article, and then using the "camera

Summary of the use posture of spring's requestbodyThere are several different ways to process request parameters in Springmvc, such as our common HttpServletRequestGet By Object @PathVariableget URL parameters based on annotations @RequestParamGET request parameters based on annotations Get request parameters based on Bean's method @ModelAttributeGET request parameters based on annotations There are several ways to be int

program does not terminate. Description: Golang error handling method has been a lot of people criticized the place, some people say that half of the code is "if err! = Nil {/print error handling/}", seriously affecting the normal processing logic. When we distinguish between errors and anomalies, the design of the function according to the rules will greatly improve readability and maintainability. Correct posture for error handling

A few days ago, my colleague small fish chat with me, said that when I had a humble little girl to Su Ning, took the 10k+ salary.Small fish tease Tao, oneself did so many years of Internet, not a in the company pure soy sauce little girl mixed good.Before me, there were three people, small fish, little words, and this little girl. Small fish and small words are the kind of brains have the power of a good programmer, step by step, today in the focus of tomorrow in business, the little girl is fla

This is a creation in Article, where the information may have evolved or changed. Golang correct posture for error and exception handling Errors and exceptions are two different concepts that are very easy to confuse. Many programmers are accustomed to seeing all anomalies as errors, without distinguishing between errors and exceptions, and, even if exceptions are thrown in the program, they are caught and converted into errors in a timely manner. On

: Server {Listen the; server_name localhost; Location/Test {content_by_lua_block {local arg=Ngx.req.get_uri_args () forKvinchPairs (ARG) DoNgx.say ("[GET] key:"K"V:", V) End ngx.req.read_body () local arg=Ngx.req.get_post_args () forKvinchPairs (ARG) DoNgx.say ("[POST] key:"K"V:", V) End}}} Output test: Through this test, we can find: 1. When submitting the same parameter ID, sort according to the order of the received parameters 2, when the parameter ID, the case transformation, such as the

Learn new things, do some development under Linux, choose to use C Talk about the university with self-study of JS mixed the test of C, this thought this life no chance to use, really secular newspaper, come fast AH ~ ~ OK, vi What do not say, in the win platform by vs served, or accustomed to have an integrated environment, a good choice of death Codeblocks,linux and choose Ubuntu. Well, after that is the beginning of the crash, a variety of installation does not, toss after a long time finally

The right posture seems to be wrong. Status is Wx.config ({Configuration information});Wx.ready (function () {MEDIA.SRC = "/project/shake-money/img/shake.mp3"Media.play ();}); Code can be put together, code separate, or call other JS SDK, it is not.It's been tested for a long time and will never be implemented. Think of the former Weixinjsbridge, test a bit, unexpectedly became. var media = document.getElementById ("MusicBox");if (typeof Weixinjsb

1. Demand Analysis The author's project has a check-in function: A user can only sign in once a day, but in the case of concurrency, a user may be able to check in several times a day, in this case, the first thing I think of is the use of Redis distributed lock to solve the problem 2.redis distributed lock The setnx in ①redis has a natural locking mechanism; If a key exists in the Redis, it returns 0, the store fails, or 1 is returned, and the storage is successful; ② getting the correct

, the purge logs to statement is executed. The binary log on master after the backup was deleted. Generally speaking, we do not recommend deleting binary log randomly. We should save them instead of deleting them directly. Just in case, leave a retreat. 4> The backup method, although the lock table TB read Local is held during the entire backup process, the INSERT statement can still be executed. So the result is not a consistent backup . Although not the Consistent backup, but since flush log,

With the development of front-end technology, the mv* framework has sprung up-and many front-end building tools have been sought after.Today, let's say Webpack + Gulp to achieve the front-end engineering posture Bar (self-feeling this posture is not good enough, you have a better posture to tell!) ）What is Webpack? Https://github.com/webpack　　Webpack is a module

Main introduction Monitoring TableView vertical scrolling comfortable posture Monitoring the correct posture of scrollview/collectionview transverse scrolling 1. Monitor TableView vertical scrolling comfort PostureUsually we listen to Scrollview/tableview's contentoffset with KVO or in Scrollviewdidscroll proxy method, For example, listen for TableView contentoffset to set the transparency

The custom enum in C # is then used as the key for dictionary, usually as follows:usingSystem;usingSystem.Text;usingSystem.Collections.Generic;namespaceconsoleapplication1{enumClothtype {Hair, Coat, Shoes,}classCloth {}classProgram {Static voidMain (string[] args) {DictionaryNewDictionary(); Diccloth.add (Clothtype.coat,NewCloth ()); Console.readkey (); } }}However, when the Add method is called, it indirectly causes the container operation, which leads to unnecessary performance consu

(string[] args)throwsioexception{OutputStream out; Try{ Throw Newruntimeexception (); }Catch(RuntimeException e) {out=NewFileOutputStream ("C:\\users\\94545\\desktop\\test.txt"); //FileOutputStream as the output stream of the PrintStreamPrintStream PrintStream =NewPrintStream (out); E.printstacktrace (PrintStream); Out.close (); Printstream.close (); } }}Print successfullyWith parameter PrintWriter (character print output stream): Output information to

number of lines to add "head-n numbers filename" Can!For example, we show the first 10 lines of/etc/profile, it should be: # Head-n 10/etc/profile5, Tali command, you can specify the display of those contentTail is the number of lines after which the contents of a file are displayed;The usage is relatively simple;Tail-n the value file name of the row;For example, we show the last 5 lines of/etc/profile, which should be:# tail-n 5/etc/profile6, less and more similar, but better than more is that

breakpoints, and on the left side of the debug screen you can see the variable changes Hide the menu barThis is a personal habit, if you also feel that the menu bar is very annoying, you can click on the view---toggle menu bar, can hide the menu bar. Press the ALT key when you need the menu bar to view Set shortcut keysFile, preferences, keyboard shortcuts, copy the contents of the entire curly brace of the desired modifier shortcut to the right Keybindings.json file, and then modify th