blackjack lessons

The following are some of the lessons I've been inspired by the software development process over the years, as well as the good experiences that have been summed up.Development starts from the trivial and then expandsWhether it's creating a new system or adding new functionality to an existing system, I always start with a version that's simple enough to have almost no functionality, and then fix the problem step-by-step until you're satisfied. I hav

Because they have just graduated into society, a lot of things do not understand, the lack of human life, the future is also more confused, so in the online search of some predecessors summed up the experience and lessons, so that they can in the future combined with their own actual situation to go a few detours, I hope to everyone useful.1, the first three years of work, do not care so much about the treatment, even in the case of no impact on life,

unspoken intention is to do so. The result is that the next day to study the problem, the solution is ready to go.21. Job-HoppingDon't be afraid to switch jobs. It is very interesting to work with different people, to develop different products and to feel different company culture.22. Continuous LearningWe need to constantly learn and understand software development. You can try different programming languages and tools, read the software development books, and accept the MOOC course. Believe

Testing to do is confused, is to do a balm, or drift, I do not know, but I know that-I want to do a good test, can affect more people's testing. Perhaps because of a variety of reasons, do not feel the value of testing, but want to make their own value, first let yourself worth, and then you are worth the value of the show you.How far can you go without a coded test? So programming is bound to be, no matter when, perhaps a bit extreme, but I am the position of the individual is this. (not arguin

3. Lessons learned from more than 2 million yuan of entrepreneurship-apps are not needed for entrepreneurship, but more than million apps Abstract: There is an idea to develop apps or websites, promote, continuously improve, and explore profit models. This general mobile Internet entrepreneurial process. However, I think that in some specific business models, the "R D app or website" step can be cut down or postponed. Health care sharing: Part

app.There is a theory of fish pond in marketing, where the target user is concentrated is the fish pond. You can attract target users in other fish ponds and then slowly direct these users into your fish pond.Now there are a large number of platforms, focusing on a lot of vertical users, can first accumulate on these platforms users and popularity, and then drainage is not too late.And in these mature platforms. Without the cost of developing apps, you just need to focus on content products and

14 Sets of Java Premium architecture lessons, cache architecture, deep JVM virtual machines, full-text search Elasticsearch,dubbo distributed RESTful services, concurrent principle programming, SPRINGBOOT,SPRINGCLOUD,ROCKETMQ middleware, MySQL distributed cluster, service architecture, operation and maintenance Architecture Video Tutorial14 sets of fine course Introduction:1, 14 sets of fine is the latest finishing courses, are the most fire of the te

development, do something more original, read more documents, more understanding of the principle rather than the same. Well, write down my experiences and lessons in the development process.1,zookeeper installation. Single-machine distributed all can, online data many, this is also easier than Hadoop build, later interested in preparing to write a script, one-click installation of Zookeeper Services. 2,SOLR installation. Note When installing on Li

* from emp WHERE empno = ' 7369 ' 9. Sorting Avoid the use of resource-intensive operations, SQL statements with Distinct,union,minus,intersect,order by will start the SQL engine execution, resource-intensive sequencing ( SORT) feature . DISTINCT requires a sort operation , while others need to perform at least two sorting Temporary Tables Careful use of temporal table can greatly improve the performance of the system Oh. The above is brother Lian Share 10

Tags: LinuxSeven weeks Five sessions (March 23)10.19 iptables Regular backup and recovery10.20 Firewalld 9 Zone10.21 Firewalld About zone operation10.22 Firewalld about service operations10.19 iptables Regular backup and recoveryBackup, command as followsIptables rules can be backed up to other files, and the file name can be taken by itself.Only the rules for NAT.There are no rules in this tableBack up the rules just nowIf you want to restart, load, you need to put in the configuration file, to

of memory requirements will B,PB,RB have? Either pointer or reference requires only one word space (32 is 4-bytes on the machine). Bear object needs 24bytes, that is, Zooanimal's bytes plus the 8 bytes that bear brings.Well, suppose our bear object is placed at address 1000, what is the difference between a bear pointer and a zooanimal pointer?Bear B;Zooanimal *pz = b;Bear *PB = b;Each of them points to the first byte of a Bear object. The difference is that PB covers an address that contains t

Lessons learned by beginners When I first went to college to study C language, I suffered a lot of losses when downloading the IDE and compiler. Although it was not a very profound problem, I decided to share it. Some senior recommended me Clion as IDE, and some teachers recommended my code blocks as IDE. I downloaded two files at the same time, installed them according to the Baidu tutorial, and edited them, but finally found that the program could n

monitoring file changes in the folder4. Import data into HDFs5, the instance monitors the change of the folder file and imports the data into HDFs3rd topic: AdvancedHadoop System Management (ability to master MapReduce internal operations and implementation details and transform MapReduce)1. Security mode for Hadoop2. System Monitoring3. System Maintenance4. Appoint nodes and contact nodes5. System upgrade6, more system management tools in combat7. Best Practices in System management4th topic:

About Whistling Android Videos:The most important feature of this video is practical, which should be said, which should not be said, I have done careful consideration. There is no imaginary head eight brain, pedantic, also useless long things. Everything is simple and clear.Today is the first lesson:The main contents are:1. Installing the JDK2. Configure Environment variables3. Download the Android SDK4. Create a new AVD5. Run the first projectVideo playback Address: Click the Open linkThe firs

a beautiful arch-shaped canal in front of Taihe square, and then turn to the North Stream via wenyuan pavilion, in the west of the kaikku outflow of the palace. The inner river stretched for more than 2000 meters in the palace. There were 21 bridges on the river, large and small, and there were more than 10 culverts. In addition to practical functions such as excretion of rainwater, facilitating water intake and fire fighting in the palace, nejin River is also a factor that cannot be ignored. M

Lessons learned from a salary negotiation Lai Yonghao (http://laiyonghao.com) Note: This is an article written at the end of 2008. On April 9, (post-paid note), I participated in a salary negotiation and got into the other party's flying knife. I was very embarrassed. Finally, I had to stick to the decision, so that the whole city would not be exhausted. This "lesson" is recorded in the close-up. One is to watch yourself, and the other is to help ot

Author: Regina Brett To celebrate my getting older, I wrote 45 lessons that I taught me in my life. This is the most challenging column I have ever written. I am about to be 90 years old in August, so I will present this column again: 1. Life is unfair, but it is still good.2. When you are skeptical, take a small step for the future.3. Life is too short to waste time hati

The C programming time on the Linux platform for beginners is not long. This time, a business project needs to use the queue. I studied and compared the related products on the market, in general, it is not too complicated or the performance cannot meet the requirements. Therefore, I decided to write one by myself. This is the second time that C is fully implemented by itself. In the past, it was changed to the next open-source software. Generally, the performance of software under Linux is acce

. Weakness is not weakness. Let others be as open and humble as you are. If someone points out what you need and how you feel it makes you feel uncomfortable, it is more about telling you your situation. Rough edge position Someone else will spy on your boundary. In this case, you know when to leave and when to stick to it, and you have already won the halftime. Sometimes some people will play too much. In this case, they should express their positions and make them brake quickly. Otherwise

temporary files, but it does not have the permission. Therefore, login to> record fails, and the root user does not have this problem. Run sudo chmod 1777/tmp Log on again and log on successfully. Lessons learned: The main reason for the modification of/tmp directory permissions, UID and GID is that the no_root_squash option is set in the/etc/exports file. According to the description in "laruence's private house dish: No_root_squash: The user who l