Concurrency risks----------------------------------------
Solve 11 common problems in multi-threaded codeJoe Duffy
Original article: http://msdn.microsoft.com/zh-cn/magazine/cc817398.aspx
This article introduces the following:
Basic concurrency concepts
Concurrency problems and suppression measures
Security Mode
Concept of cross-cutting
This article uses the following technologies:Multithreading,. net
Directory------------Data CompetitionForgot to
of a data structure.
(3) polymorphism
In C ++, polymorphism is usually implemented using virtual functions, but there is no virtual function in C language. How can we implement overload?
The answer is also obvious, and it is also an extension of the function pointer. The following example shows an example:
# Include # Include
// Structure of the virtual function tableStruct base_vtbl{Void (* dance) (void *);Void (* jump) (void *);};
// Base classStr
courses.Starting November 29 I speak of industrial enterprise management 60 class 12 correspondence courses.December 4 I teach the socialist market economy 8 hours Jiamusi Elder University class.After three years of careful study, I wrote a few questions about the traditional political economy.December 25, Heilongjiang Academy of Social Sciences in the sixth period of 1995.Party School Leadership Replacement half a year Daban education correspondence courses teaching funds and bonuses drastic r
() { ASystem.out.println ("Jazz.play"); at } - Public voidPlayDoubled) { -System.out.println ("Jazz.play" +d); - } - } - Public classTest { in Public voidperform (Dance Dance) { - Dance.play (); to } + Public Static voidMain (string[] args) { - NewTest (). Perform (NewLatin ());//upcasting the } *}View CodeExecution result: Latin.play. This time you may find that the
This article refers to self-http://www.cnblogs.com/xdp-gacl/p/3971367.html1. What is an agentDynamic Agent technology is the most important technology in the whole Java technology, it is the basis of Learning Java framework, not dynamic proxy technology, then learning spring these frameworks are not understood. Dynamic Agent technology is the proxy object used to produce an object . Why do I need to generate proxy objects for an object in development?Take a real-life example: singers or stars
are shared by many instances, and the corresponding properties in the prototype can be hidden by adding a property with the same name on the instance. However, for properties that contain reference type values, the problem is more obvious, as follows:
function Animal () {}
Animal.prototype = {
constructor:animal,
name: "Animal",
age:1,
hobbies: [" Dance "," Sing "," Play "],
sayname:function () {
alert (this.name);
}
;
var cat
first example, we'll use a piece of existing clip art to process a simple dance course poster.
1. Customize your clip Image color
When I start to design my work, the first thing to do is to create a color swatch that matches the color of the final work and save it with the work. This allows you to use standard colors without worrying about color deviations. And it's safer than putting the color in the swatches. The picture below shows the color palet
I want to extract the essence of inheritance technology to a simple, reusable, easy to understand, and without any dependencies. In addition, I want to make this result simple and very useful. Here is an example of the effect I want: varPersonClass. extend ({init:... SyntaxHighlighter. all ();
I want to extract the essence of inheritance technology to a simple, reusable, easy to understand, and without any dependencies. In addition, I want to make this result simple and very useful. Here is an e
inheritance from class. The ② code defines the constructor init, which functions as an initialization property. The ③ line code is defined as the normal function dance (), which can return the property dancing. The ④ line of code is declaring that the Ninja class inherits from the person class, the ⑤ line code of the definition constructor init, where the This._super (false) statement is called by the parent class constructor to initialize the proper
"Wake up" refers to the wonderful use of The Voice Group
The "wake up" written by Wen is undoubtedly a famous song in the audio industry, which can be often heard at audio conferences. When it comes to this song, the author will always remember that the TV station launched a social transaction processing unit "local market" around 1974. it is the beginning and end of a film with "wake up.
Check "China's dongyin Gao Hu mingqu extraction (Yu Qiyun injection demo version)", there is a cloud of
used for C, Be, A, and other tonality.Typical applications: Haydon (Austria), musorsürski (Russia), picture expo, walking, and Chai skuski (Russia), and Italian preference, the dance drama "Swan Lake"-the dance song "-the second part of" brandunburg"
3. short number (Cornet)Instrument tone: bbApplication staff: high-pitched staff, high-level staffPractical Phoneme: # f -- C2 (actual e -- xiaozi, two groups
)
Running through the FireWire perfectly
The League of Heroes is a great game experience in Win8.
The Underground city is better compatible with Warriors
In the first part of the test, four popular games in the League of Heroes, through the FireWire and Dungeons and Warriors three game Win8 compatibility is good, especially the heroic Alliance and cross the line of fire, the overall performance of the game is more satisfactory; but Call of Duty 9,
1. Horse to, happy to hit the door, elated, auspicious winding, good luck, the beautiful divergence, the day Meimei, happy settled, happy every day, the blessing arrived, laugh often open. Chamanian is a prosperous man!
2. Auspicious snow trillion harvest, snakes go to the horse shout, Dance Dance, God horse Mighty Yang. The sound of firecrackers, the sound of hoofs, hundreds of millions of people sing pra
The Golden Rooster crowing, the god dog exorcise.Ching the dog to suppress the smuggling.The dog defends the Christmas Day; may open the Ruyi springThe dog defends the Christmas Eve, the happy year of the birdThe dog defends the peaceful world, may open the Ruyi springDog watch night; Yingge Entertainment SpringThe dog protects the house of peace, the person is happy yearThe dog Kankan the tiger; the Fish dexterous DragonThe dog offers plum blossom; chicken leaves mapFamily fair spring scene;Bai
Sing. We Dance. We steal things.Is exactly what we want the title to be.2. Get music rating and number of reviewsOld way, first right-click the XPath with the copy rating://*[@id="content"]/div/div[1]/div/table[1]/tbody/tr/td[2]/div/div/span[2]Copy the XPath of the evaluation number: //*[@id="content"]/div/div[1]/div/table[1]/tbody/tr/td[2]/div/div/span[3]/text()Again, we're going to get rid of the tbody and rerun the code:# coding:utf-8from lxml imp
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