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Looking back, is the strategy and simple factory still ?, Let's look back at the policy factory.This blog is a draft I prepared a long time ago, but it has been dragging on to the present. I just attended a class in Baoding, and my notebook was useless. I finally picked up these drafts by looking at my cell phone, decided to finish writing.Before talking about the design model, let's talk about the open and closed principles.I. Open and Close principl

Before we start with a detailed explanation of the problem, let's look at a piece of code1 Public Static void Compare1 () {2 Integer i1 = 127, I2 = 127, i3 = $, i4 =; 3 System.out.println (i1 = = i2); 4 System.out.println (i1.equals (I2)); 5 SYSTEM.OUT.PRINTLN (i3 = = i4); 6 System.out.println (I3.equals (I4)); 7 }What is the result of this code output?The answer is:Was it strange? Why 127 when = = is tru

Gossip js Front End frameFront-end person = artwork + Design + code + Test--PrefaceFeatured Articles:First, from the avalonjs of the template talk aboutSecond, the huge AngularjsThird, don't want to touch DOM againIv. Modular? Is there a back-end thing?V. Look at the miniature rendering engine I designed a year agoSix, the browser standard on the fussSeven, throw away the browser, build application containerEight, why flash, Silver and Java are on the

Look for it (zzk.cnblogs.com) is our site search products, is a disk IO-intensive (Read and write index file) application, since the migration to Aliyun has been the cloud server's disk IO problems, and Aliyun did not provide an alternative solution. Because of this problem, look for to see unexpectedly become our whole station response speed the slowest application. People are forced out, although Aliyun

Original URL: http://mb.it168.com/a2012/0816/1385/000001385641_all.shtml"IT168 Application" now, more and more computers are already popular USB 3.0 interface, the new laptop, the newly installed desktop, you can find this is not the same as the past 2.0 times the blue USB interface. So, the same is to charge the phone, USB 3.0 and the traditional USB 2.0 compared to the different motherboard chipset, desktop and laptop USB, motherboard I/O panel and motherboard expansion USB interface, these US

High-grade colors have low color purity, brightness, and saturation. But it is not the root cause that makes them look upscale.The correct answer is: The reason why some colors seem to be high-end is that the colors present little emotion. To reduce the color saturation is to reduce and reduce the effect of color on human emotions. So it looks a little upscale. Let's start with the influence of colors on our mood. Different colors give people differen

Many successful enterprises have successfully used theirWebsiteAnd use the website as a powerful tool to promote its products and services.When a websiteTo a new level, it will certainly bring your online business.If they think that your website is not professional enough, people just stay on the website for a few seconds and even leave immediately. OneProfessional websitesIt will not only give you more revenue, but it will also help improve your online reputation, so your brand gets the trust

, derived classes cannot directly use the private members of the base class. 3) C + + Neutron class external access attribute table Parent class member Access level FollowingUnderwritingPartyExpression Public proteced Private Public Public proteced Private proteced proteced proteced Private Private Private Private Private Iii. the principl

Why does the program I wrote look so scattered? Sometimes I can see that other people's programs are very compact, but I feel that my writing is very fragmented. why? Please teach me. ------ Solution -------------------- is the program you wrote not standardized? Poor readability? Cause? ------ Solution ------------------ stand on the shoulders of giants and learn from them slowly. ------ solution ---------------- why does the program I write

What I want to match is like this: {% foreach $data $key $value %}233{% endforeach %}2333333{% foreach $data $key $value %}233{% endforeach %} To match the contents of the first foreach, write a regular expression that looks like a preg_match_all('/{%\s*foreach\s*(\$\S+)\s*(\$\S+)\s*(\$\S+)\s*%}((?!endforeach)[\s\S]*){%\s*endforeach\s*%}/i', $page, $match); Because there are two foreach, so I used a negative look, that's the middle part [\s\s]*

Look at what the syntactic sugar in C #6.0 has done (part 1 ), Reference page: Http://www.yuanjiaocheng.net/CSharp/csharp-generic-sortlist.html Http://www.yuanjiaocheng.net/CSharp/csharp-generic-dictionary.html Http://www.yuanjiaocheng.net/CSharp/csharp-partial-class.html Http://www.yuanjiaocheng.net/CSharp/csharp-Static.html Http://www.yuanjiaocheng.net/CSharp/csharp-Anonymous-method.html Next I will continue to talk about it in the previous article

in the head tag does not matter.The dynamically created script JS looks like this:The dynamic script created above will automatically execute the code in it if it is specified as SRC and append to document, so how do I get it to load and execute the callback function or if I want to load multiple JS files to qualify them in order?Look at the code! Haha (because the dynamically loaded JS, the browser does not guarantee the order of loading)Another way

The function of reflection is to say the function of reflection in a straight way 1. Provides us with the ability to analyze information in a comprehensive manner 2. Dynamic load Class I understand the meaning of "reflection" (only personal understanding) I understand the Java reflection mechanism is: to provide a complete and powerful API "reflection" of the structure of the class. For example, a reflection mechanism is like a mirror, and the class is like a person in a mirror. The Mirror (refl

These days too busy no time to write a blog, go home today simply look at the next ThreadPool source, found that there is a fun thing, called "Execution context", the name is called: "ExecutionContext".A: The approximate flow of threadpool.The first step: it calls the underlying helper method.Step two: Walk into this helper method, we will find a queue, and the item of this queue must be an instance of Queueuserworkitemcallback, and then this will ins

A quick look-up table is an effective tool to help you remember things. The shortcut key tables that Web designers and developers use frequently make their online productivity much more efficient. In fact, the quick look-up table is to help us gather the most commonly used information in our daily life and make it easier to use, so that we can work more efficiently. With them, it frees your brain to spend

Processor and graphics card is the most concerned about the computer hardware, many small white do not know how to look at their own computer hardware, computer Pepsi net rain also many times wrote a similar tutorial, but still have a lot of novice friends feel that writing is not detailed, today we specialize in how to see the graphics card, How to look at the computer graphics card model and how to determ

Button Do you do the homepage is the same as others, look uniform, no character, whether you want to change the Web page look like it? Have you heard of the style table? Is the CSS, it is the one that allows you to more accurately control the pages of the stuff. Let's take a look at two examples first:1. Turn the button background from gray to yellow, fo

Why I write this title, is because I was just getting started SEO, before being a lot of old SEO hit, in today I write this article to prove that the new SEO is not worse than you! Below live in now write down oneself 113 days how defeat occupy Beijing wedding photography This word home a year or so of two wedding photography studio! I live in the present in the first several articles mentioned my experience, is a chance to contact the SEO, is also a chance to enter the candy Room photography st

Look at what the syntactic sugar in C #6.0 has done (final ), Finally, I wrote the final article. The whole article is like a sleepwalking. After I finish this article, I have to continue writing my js series. I. Object initializer with indexes Follow the old rules of the rivers and lakes to see what it is. 1 static void Main(string[] args)2 {3 Dictionary At first glance, we can see that this is quite fresh, but in the twi

IT industry, my feelings were still very good. I talked about two times of love, one university, one job, but it was all about my own nozuonodie, finally, I broke up. Although I did not go on in the end, I once fell in love with each other. However, after entering the IT industry, the landlord felt like a new person, and all the girl skills were lost. I have been dating for nearly a year in the last six months. I have been introduced to many girls, but I always feel that I am not enough. Some t