SEO-Baidu popular keyword ranking F experience

Contact SEO in the second half of last year, the network end is nothing to open a number of PW was fun, although they make little money, and is pretty enough to spend

We all know the network information needed to open, PW, when I remember throwing a monthly fee, PW propaganda points I feel the pressure, so, with the stations to advertise the idea of publicity was the main point is Baidu's several sites First of all, we must start from Baidu, and those days, all day long in contact with us to find the article, look at some SEO articles.

Finally launched their first website www.91cssf.com This site has occupied a treasured, PW GOOGLE Baidu and the word three position for six months, and then LIWOOOL fight first.

I detail below, under how to do SEO for this site.

A total of three key words, the first is the main word, it is very important that you make sure your TITLE in the subject which is the best on the front, or just put a subject, not more than 30 characters.

keywords subject

description description (ps: these two highly controversial, some say written, some say written, think or write well, specifically how to write I do not say)

We look under the navigation: Cell Phones, Cell Phones Technology, Cell Phones plug-in, Cell Phones screenshots, Cell Phones Association; each part name includes the main keywords, this is very important.

Here is the latest section lists the home page, and this site as a small article, so I choose to have all of the articles appear all at home, like this for your engine easily within your page, generally with the home side within the same page , the contents of the list is the same, all listed. Another point is the page header and footer, must be unified content, otherwise the engine will think that this site is not important, to reduce its weight, the remaining thing is to do outside the chain, and so many ways outside the chain, has bought, have to exchange, there is to send garbage, anyway, is the Eight Immortals, each have their own bills, that depends on your own according to your own circumstances and select the appropriate methods.

On the outer chain personal view is that quality is more important than quantity, not much, but fine! Oh, of course, when we do not have quality time, went to seek the number, and this site has done 26 days later, on the first 1, 37 days time, into the top three, Oh, of course, I had a small profit.

Some people say, this is the last thing, you point out examples of the recent SEO see next to you good, Oh okay, I have come up with a to www.8qw.net this site is also a small percentage of my recent be the first page.

SEO small percentage of my level is not high, 91cssf.com to the first part is left to chance it, I currently do this www.8QW.NET Baidu's legendary World PW overall and 91 of the first page 8qw.net like , does not see the code, then easily see that one person, and, with the SEO strategy is the same, congratulations to you, you're right. But 8QW.NET used is completely DIV + CSS code, and completely abandon the table is what I learn DIV + CSS, the first website to do.

Why give up the table using DIV and then, this topic is also very controversial, I only said my opinion under: DIV reading speed faster than the table, because all the CSS styles inside, and engine spiders to your site the time to read all the content, without looking at your style, this is the DIV advantage.

We may have a look webmaster network code is DIV + CSS layout, many large sites also, so I use a DIV in this structure.

For a similar site in terms of style of the engine, to be considered a waste station, which is a lot of web content a lot, but the reasons for ranking has been stagnant. Therefore, we do point in time, be sure to choose different styles and different construction methods. 8qw spent more than a month on the first page of Baidu currently seventh, GOOGLE ninth, efforts continue.

8qw I just stop here, because the remaining works, exactly the same with 91. Supplemented on an internal link have to do a good job (internal link that is within your page and inside pages before, between the inside pages and home page link), this one is essential, if you do not understand, you can refer to other sites In fact, contact with us is a good reference site.

I said so much, not saying that everyone should do, PW class words, this term competitiveness too, now has entered the white-hot stage, webmaster gateway ads in PW we have seen, Oh all my competition opponents, ha ha ha, if you do not have enough time and energy, it is recommended not to touch the hot words, some popular words as you can to earn a lot of money.

For example, I recently did a small percentage of words, different from the PW, complete garbage station, by GGAD earn money, gain almost as much as PW, my whole operation is the same way.

However, I do not do website base chain, this way, too dangerous, as domestic engine, Baidu, or boss, but it, on the group chain is very severe punishment, if you do not call Baidu, then you can do under the Baidu GOOGLE does not seem so serious, foreigners do not understand Chinese, this is the truth.







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Lay the foundation for the bug prevention [2]

I want to emphasize the nature of the following phrase: bug of the underlying causes? bug does not produce the root causes of this bug where the source code, even though the information and analysis may be close. But the bug was found means to find the root cause for these errors. Through some examples to illustrate the problem may be more clearly.

Let us look at a common thread synchronization problems on. Suppose a multi-threaded applications need to synchronize access to a data structure. Assigned to test the product's QC engineers found that in some scenarios, the application while not Crash, but it will stop responding. QC process is normal, this bug has been recorded in the bug tracking system, and describes the test scenarios and stop responding to actual results. However, if the QA engineers familiar with the source code, you can bug the cause of the preliminary analysis. For example, the QC engineer may determine the cause of this bug is not freed before the thread mutex, thus creating the conflict. The analysis can be recorded in a detailed description of the bug, bug analysis as a basis.

(2) Bug revised and further analysis

As always, found a bug, the developer should be responsible for it. However, if the bug bug discovery process includes a preliminary analysis of root causes, then on how to solve this bug, the developer may have more information. Although this is not a preliminary analysis of QC engineers purpose of bug, but it may provide developers with more ideas.

In addition to fixing bugs, and records the specific steps to achieve the developer should also conduct further analysis of the bug. The analysis should focus on leading the development of scenarios generated bug.

In the case of thread synchronization, developers should not only record the addition of a call to release the mutex (Note: Mutal Exclusion = mutex lock to ensure data is not shared by multiple threads simultaneously access granted only to share a thread exclusive access to resources). Instead, developers should find out the reasons does not release the mutex. Assumption of the reason is: because the need to synchronize more than one way to return point, so developers forget to clean up some control path code.

Simple analysis of this kind brings great practical value. Different from the records of specific solutions to specific problems, we now have the experience to solve many cases, in some cases not even related to thread synchronization and release mutex. However, the analysis does not end the process, we need further analysis to collect all the data will be converted to practice, to help in the future to avoid the occurrence of a similar bug.

(3) bug prevention of

Analysis of the final step is to find a way to prevent similar mistakes. This approach not only to the development, QC engineers, but also to write the code is not directly responsible for a senior developer.

The results of this phase is some useful practical experience, developers can prevent these practices and not bug correction bug. These practices should not be a specific solution to the problem. Thread synchronization in our case, such a practice might be: Is there scope of the audit mechanism to obtain and release resources? This practice (not necessarily suitable for all programming languages) can guide the developer to use a class (class) package of resources, such structures (constructor) function with easy distribution and destructor (destructor) function releases resources. If compliance with this agreement, when the program ends this way, no matter how the control path, and resources (the above example obtained mutex) total can be released.

Bug bug prevention analysis of the entire core of the process. The practice of this phase can be summed up in the broader context of prevention of potential defects. As the results of extensive application, analysis into a specific problem will be easily recovered.

Is very important that the example before us is a random bug. Developers to inadvertently forget to release resources. Realized in the code, this bug is randomly generated, but generated a similar bug has a very high probability. So, although this type of bug is random, but still can be foreseen and prevent.

(4) Release experience

Analysis of the practical experience obtained should be recorded and published, so other developers can learn from these experiences by avoiding similar mistakes. The best way to experience a release is the knowledge base. This will make the new knowledge flows within the organization was related to the development of staff learning.

If the results of the analysis is not communicated to others within the organization related, then the aim of the analysis will not be met. To avoid the next bug appears the only way is to let developers know how to avoid it, and encourage them to do so.

Bug analysis example

Let us examine another example, in order to better understand the benefits of bug analysis. In this case the, QC engineers in the following operation: When entering a long string to the application causing the crash (crash). This conclusion is in itself requires a certain level of analysis, but the QC engineers are not satisfied with this analysis, further study of the relevant code, found that crash because the input string processing problems. One step is to enter the character buffer size in a fixed array, and this array is sometimes too small.

And as examples of thread synchronization, QC engineers preliminary analysis led to great value, development can more easily find and fix this bug. In addition, the real cause of defects in the recording but not on the surface, will help others avoid a similar bug.

Then, developers began to fix the bug. When the amendment, she not only records the solutions, and explains the causes of lead defects. In this case, because the bug caused by the operation of untreated C / C + + buffer, there is no regular testing for the size of the buffer is not enough. However, this conclusion can even be further summed up the experience for wider application to help developers in the future to avoid similar defects. Therefore, the analysis of the final stage of development of a more senior officer in the group of developers with the help of practical experience are the following: Avoid the use of untreated C / C + + buffer as far as possible the safe use of collections and strings, 濡俿tandard template provided the database of available collections and strings. This completely avoids the previous discovery of this bug.

Benefit

Bug analysis brings a lot of benefits. The first benefit is to help developers create the wrong lessons learned, and make him in the future to avoid similar mistakes. Sometimes, only a specific bug correction rather than to analyze it will not help the cause and improve in the future. In this case, only the in-depth analysis and guidance of senior developers to enable developers to grow and improve their ability.

Wider benefits that allow other developers to learn from the mistakes of colleagues. Analyze and summarize the practical experience can prevent the production bug, this knowledge sharing among members within the organization. Developers created a bug to help others within the organization to avoid a similar bug there.

From a more general point of view, publish best practice (such as bug analyze and summarize the practice of) the members of the organization to promote the learning and self-improvement. It would appear, Bug analysis of the value of prevention is also not only flaws.

Another advantage is that by recording from a broader perspective on the bug, other QC engineers within the organization will know how to find a similar error. In addition to testing within the organization to share knowledge and experience, bug analysis process can promote the development of better testing techniques and tools to help find a similar bug. Therefore, even if defect is not completely prevent, but also make it easier to find.

As a result of all of the above benefits, QC in a test will have more time to test more complex scenarios and found more "cunning" bug. If you have a similar bug was not susceptible to prevention, and QC have better technology to find a similar bug, there is a more time to carry out more advanced tests. Of course, the organization's quality products will be enhanced.

Finally, I would like to emphasize that the bug of not only the collection of implementation problems, and summarizes these issues from the experience. For example, lead to a bug causes the demand may not be sufficiently clear. In this way, the experience gained through the bug analysis provides a way to prevent the demand is not clear. This experience may not be on the organization's developers have an effect. So, although QC engineers began the realization of the results verify the developers, but also need to improve the development process, such as requirements gathering, design process and so on.

4. Summary

The quality is not really bug the production of products. Any other goals are to make within the organization to accept members from thinking it is normal for software defects as part of the workflow. Therefore, the first step is to prevent the recurrence of the same bug. We could easily implement this goal. We can produce a developer of a bug to improve practices throughout the organization.

Products through in-depth analysis of a bug, we can understand the mechanism of this bug: Why would? How to prevent it? How do the next time we find it more easily? Just a little time to understanding our bug, rather than just fix it as soon as possible, we can gain experience. In this way, because a defect wasted time can be turned into investment: to ensure that similar mistakes will never happen again.







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