art of programming knuth

: Network Disk DownloadVolume 1th introduces the basic concepts and techniques of programming, and then explains in detail the content of information structure, including the representation of information inside the computer, the structure relationship between data elements, and the effective information processing methods. In addition, the book also describes the programming in the simulation, numerical me

A good code is a work of art? Or is the software process Declaration actually true? What are the requirements for becoming an "excellent" programmer? Imagine you hired a plumber to change the old pipe in the basement. This guy hasn't stopped talking about the artistic beauty of his pipeline before, during, and after work. "Look at the pipe angle. How nice it is to align with the wall? If you ask me, it is a work of

you have no money, so the rich can't do the job), not impatient (the machine is not affected by your emotions and intimidation), not lucky (try 100 times, wrong will not be correct), can not guess (here the right thing is often only one way). Obviously, this kind of work is not for everyone to be competent. The source of knowledge seems to be a lot of ways, but in fact there can only be a real source, that is, their own practice. Not through their own practice and thinking, knowledge even if ot

Prelude I hope that more people will treat any interview questions in this crazy comedy series as a simple programming question or a substantive question like me, in the course of reading this crazy series, I hope you can put all the burdens related to the interview as much as possible, and devote yourself to solving every "programming question". In the process of solving

Tags: ble learning entry Good type programming AMP data arc --20170322 --1.0 --Update the statistics of the tableBeginDbms_stats.set_table_stats (user, ' EMP ', numrows = 10000);EndBeginDbms_stats.set_table_stats (user, ' DEPT ', numrows = 10000);End--Re-view the statistics of the tableSelect T.table_name,t.num_rows,t.blocks from User_tables t where T.table_name in (' EMP ', ' DEPT ');/*DEPT 10000 100EMP 10000 100*/ --2.0 --View the number of blocks

Learned in the 11th chapter of JavaScript DOM programming art.Hint statement relative to text box substitution with JavaScript123456 - to + - the * $JavaScript DOM Programming Art placeholder placeholder IE8 compatible approach.

definition listDlist.appendchild (Dtitle); Dlist.appendchild (DDESC); } //Create a title varHeader = Document.createelement ("H2"); varHeader_text = document.createTextNode ("abbreviations") Header.appendchild (Header_text); //add a title to the page bodyDocument.body.appendChild (header); //to add a definition list to a page bodyDocument.body.appendChild (dlist);} Addloadevent (displayabbreviations);This refers to a for in statement whose function is to enumerate the properties of the objec

PreludeThere are endless questions about virtual functions, and articles about virtual functions are the same. Why should I write this article on virtual functions? After reading this article, I believe I can understand its meaning. At the same time, the original fantasy series has changed its name to the programmer's programming Art Series, because it no longer focuses only on "interview", but on "

Thomas Kyte summed up his successful experience in Oracle programming art, which is excerpted as follows: Summary of successful experiences: · Whether applications built based on databases (or databases) are successful depends on how databases are used. In addition, from my experience, all applications are built around databases. If an application does not store data permanently anywhere, it is hard to ima

1.1) Dom-core Method: (not specifically for JS, any programming language that supports the DOM can use it, their purpose is not limited to the processing of web pages, can also be used to handle any kind of markup language written processing documents)①getelementbyid ()②getelementsbytagname ()③getelementsbyclassname ()④getattribute ()⑤setattribute ()2) Html-dom Method: (is an HTML-specific attribute and cannot be used in any other markup language docu

It took a weekFinally, I read "JS + DOM programming art" separately.This is the fourth book on JS in the last one and a half months.Others are "JS completely self-taught manual", "Return of the JS King", and "JS Programming Tutorial".The reason why I went to see this is to read a post on csdn looking forward to JS, which is very recommended. Let's talk about it.

The first chapter:1.DOM: is a set of methods for abstracting and conceptualizing the content of a document, which is an API.2.W3C definition of DOM: An excuse that is independent of the system platform and programming language programs and scripts can dynamically access and modify document content, structure, and style through this interface.3.Ajax: Asynchronous data transmission, H5 4.JavaScript Basic Syntax:Multiline comment "/* * *"　　　　　　　　　　　　　　　　

After reading this book today, I finished the last comprehensive example. To tell the truth to gain a lot, finally understand what the front-h5 specifically doThe more you learn, the more ignorant it seems, this is really a truth. Post-planning:1, CSS + DIV layout In-depth understanding, key combat2, JavaScript advanced programming that book thoroughly understand3, background and front-end data exchangeWhy I like technology, it's weird:-)Javascript-do

value (number), Boolean (Boolean) are scalar (scalar) in this book is just a brief introduction.5. An array array is a set of values represented by a variable, and each value in the collection is an element of the array.The number of array elements is the length of the array, and the element to be added to the array is called padding (populating).Declaration method: var beatles = Array (number); var beatles=[];var beatles = new Array ();padding: array[index]=element; array elements can be of va

Compression script:The so-called compression script, refers to the script file unnecessary bytes, such as spaces and comments, all deleted, so as to achieve the purpose of "compressed" file. Fortunately, there are many tools that can do it for you. Some refiners will even rewrite some of your code, using shorter variable names to reduce the overall file size. The streamlined code, while not easy to read, can drastically reduce file size. In most cases, you should have two versions, one working

adept at handling repetitive tasks. It is easy to traverse a long list with a while or for loop.Responding to EventsCSS provides: pseudo-class attributes such as hover allow us to change the style based on the state of the HTML element. The DOM can also respond to changes in the state of an HTML element through events such as onmouseover. So when to use: hover, when to use onmouseover?The simplest answer is to choose the easiest way to achieve it. For example, if you just want the link to chang

1. A document is a tree of nodes2. Nodes are divided into different types: element nodes, text nodes, attribute nodes, etc.3. Each node is an object, and the atom of the DOM is an element node4.getElementById returns an object that corresponds to a specific element node in the document5.getELementsByTagName and Getelementsbyclassname return an array of objects that correspond to a specific set of ELEMENT nodes in the document, respectively.The 6.typeof operator can tell us whether its operand is

, this usage is not a good habit and is not recommended for everyone to use. Essentially, when you create an associative array, you create an array object's properties. In JavaScript, all variables are actually objects of some kind. For example, a Boolean value is an object of type Boolean. In the above example, you are actually adding the name, year, and living three properties to the lemon array. Ideally, you should not modify the properties of an array object, but you should use a generic obj

(NULL); } Else{alert ("Sorry, your browser doesn ' t support XMLHttpRequest"); }}addloadevent (getnewcontent);Where addloadevent is the load function written by itselffunction Addloadevent (func) { var oldonload = window.onload; if (typeof window.onload! = ' function ') {= func; } Else { function () { oldonload (); Func (); }}}In this way, insert the above two JS scripts into the HTML page that contains the DIV node with the ID newA simple Ajax