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beginning, clean up the old mountains and rivers. Also regained the mentality of ignorance.C#? What kind of name? What's the fuck?This has to be a little forward. There was also a powerful developer Borland, in addition to Microsoft.The two of them choked, the result Microsoft Dug away Delphi his father Anders Heilsberg.Of course, Borland's decline is not only because of the loss of the great God, anyway, he was at Borland then nothing to do.Microsoft has dug the treasure, then Microsoft's main

a language that was not so dependent on functions and encapsulation, functions are not required. But C #, or C-system language, is based on functions and encapsulation. So you might think, what about a code that doesn't have to function or encapsulate? The past basic has a line number that can be goto one line and then execute. We rely on this goto, dividing the code into chunks and jumping around.This is essentially a package without grammatical guarantees, essentially a function. In C languag

Because CPU resources are limited, multiple threads in a process want to preempt the CPU, which also causes multiple threads in the process to execute alternately.Thread.Sleep () itself means that the current thread hangs for a certain amount of time.Thread.Sleep (0) The explanation on MSDN is that suspending this thread enables other waiting threads to execute. This explanation is prone to misunderstanding, and we can understand that the current thre

=a+bA-= B is equivalent to A=a-bA *= B is equivalent to A=a*bA/= B is equivalent to a=a/bString connector +, two strings with a + symbol, the role of + becomes the connection of two stringsTrinocular operatorThe logic of writing? A:B, when logic is true, the result of the operation is a. When logic is false, the result of the operation is B//operator Public classOperator { Public Static voidMain (string[] args) {intA = 1,b = 2; System.out.println ("a+

]) let child= Readypool.length? Readypool.shift ():(poolsize++, Cp.fork (workmodule)) Let cbtriggered=false; Child.removealllisteners (). Once (' Error ',function(err) {if(!cbtriggered) {CB (ERR) cbtriggered=true} child.kill ()}). Once (' Eixt ',function(){ if(!cbtriggered) CB (NewError (' Childe exited with code: ' +code)) Poolsize--; Let Childidx=readypool.indexof (Child)if(Childidx >-1) readypool.splice (childidx,

to say, in C # all use logical operations, you can write a definite bool variable as above.When you write that these questions don't get around at all, you can completely ignore them.Now, if you write code to write a logical operation around it, you can write it down and make it easier to read.As long as you always keep in mind that all operators are trying to say a word, they will not fall into this trap.In fact, more than just operators, high-level language we said, the whole is a tree, each

Since this time, this blog has successively introduced the development and debugging environment and simulator of the Android system, and analyzed in detail a softkeyboard instance of Android, which is listed as follows: What is Android? Android SDK 2.3 and the latest eclipse Development Environment (1) Android SDK 2.3 and the latest eclipse Development Environment (2) Android SDK 2.3 and the latest eclipse Development Environment (II

versa.3:explicit keyword.1, the constructor that identifies this keyword must be displayed for use. cannot be called implicitly.4: destructor.1, the destructor function body does not carry out the destruction of class members. Instead, the member is destroyed when the destructor body is complete.2, for pointers, the destroy function destroys the pointer itself only, and does not destroy the object pointed

skillful use of string will be indispensable. Not much to say, we are directly on the code to exercise.The method of new project, I will not say more. The code is as follows:1 Packagepers.frank.test;2 3 Public classTest {4 Public Static voidMain (string[] args) {5String str = "I love java!!! ";6String str1 = str.substring (0,4);7System.out.println ("str1:" +str1);8 9String str2 = str + "But I also love C + +. ";TenSystem.out.println ("str2:" +

What is a recursive function?Inside the function, you can also continue to call other functions, if a function calls itself internally, this function is a recursive functionGive an example of a factorial that asks N:def fact (n): if n = = 1:return 1; Else : return N * Fact (n-1)Print fact (5)>>>120The above is a recursive functionThe procedure for running this fu

others do not have, you have to pay.To fulfill your desires.Work for more than 6 years, by writing code to earn about 300,000, at least before I start, this 300,000, in my hometown, I feel I am doing well. Take this money, find a house, own first-hand, from the first year turnover of 20,000 yuan, to the current one-year turnover exceeded 2 million, wrench a calculation, also has 5 years. Recalling the previous 10, I do pay, I have been tired, suffered humiliation, I do not regret, if you give m

(BI); return(Oi.readobject ()); }}About this method I do not introduce more, we just need to know that there is a way to do, and later if you encounter the need to use this situation, you know how to deal with.To summarize, the object cloning is to copy the current state of an object into another new object, two object variables pointing to different objects, shallow clone just call the Super.clone () method, the member variable is also a simple value copy, so when the member variable has an ar

in very easy and clear form, which is also calledVisualization of data. the best places to learn d3.js are: http://d3js.org/, and of course it's all in English. Here are two ways to use D3.js with the installation:1. Download the D3.js file D3.zip after decompression. Include the relevant JS file in a file such as html,jsp to 2. Can also directly include links to the network. Such a method is simplerbut use to keep the network

the command.Java command:Javac command:Java-version command:4. Verify the first Java program under the console:public class Test {public static void main (string[] args) { System.out.println ("Hello world!" ); }}Write in Notepad, click "Save", and deposit the C packing directory, enter Javac Test.java and Java Test command, you can run the program (print out the result "Hello Java"). Note: Use the cmd command to set the current directory to the Java file directory, for example: CD

After nearly two years of Hadoop learning and use, it is necessary to make a summary of the study of Hadoop, the best way is to summarize the way to blog, both to re-comb the previous study can also communicate with peers, starting today will be launched the Hadoop 0 basic series of articles,Of course, the summary process will refer to relevant information books, and some examples will be directly from the

very important point, if the initialization value of the constant needs to change, such as the beginning to set a constant is called Full_mark, first you think full score is only 100 points, but after the program is finished, was told that the full score is 120, so you just need to change the definition of the constant 100 to 120, Instead of having to change every 100 of the code to 120, it not only increases readability, it also increases maintainability.Don't neglect the code's readability, t

After the development environment is set up, an integrated development environment, also known as the IDE, is required for programming. The IDE recommended here is idea, and the old eclipse should be put aside, (manually funny).Idea's: http://www.jetbrains.com/idea/When downloading, can choose Ultimate version, also can choose community version, suggest choose Ultimate Version, download good later install, Activation Code address: http://idea.lanyus.com/before use, please "0.0.0.0 Account.jetbra

do not use instanceof or Isinstance method, here briefly explain the reason. instance determines whether a object belongs to the same class as the B object, or has the same parent class, or implements the same interface. The Isinstance method determines whether two types can be strongly turned.Since this little chestnut does not have the relevant context, it is safe to use the GetClass method to judge, of course, in the future can be modified according to the specific situation.At this point, t

The definition of DOM:1.DOM is the World Wide Web Consortium standard2.DOM defines the standard for HTML and XML (marking e-mail).The text object Model (DOM) is a platform and language-neutral interface that allows programs and scripts to dynamically access and update document content.Categories of DOM:Core dom-All structure documentsXmldom-xmldom Structure Documenthtnldom-a structure document specifically for HTML.JavaScript Introductory

Game Development Series 1: enemies in the game (1) http://www.flashempire.com/school/tutorview.php? The id530 is not a strange thing for the current Flash to develop games like a decent one. The content I mentioned here is related to game development, but it is basically Syntax. Game Development Series