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This article mainly introduces self-coding, which is a rude and effective means. Self-coding is a very interesting idea, it is easy to understand and accept, it replaces the traditional feature extraction process (deep learning is actually a substitute for this process, but the two methods are different) 1. Self-coding is the way to first encode the source data, that is, the meta-data layer abstraction 2. Then use the abstract data for data restoratio

background This series of summary should be accompanied by the project in a timely manner, but for the graphics card driver, itself can refer to very little information, only from the kernel code to do not try to figure it out. The purpose of the project is actually very simple and rude, why do you say so, because the work to be done involves implementing a 2D hardware accelerator on the embedded device, capable of supporting Mesa Open source 3D Grap

Simple and rude, directly on the horse: There is nothing difficult, are CSS and HTML, see the likes of the direct use.

There was an incident in the rice age yesterday. There was a student who did not respect the security, and then caused the violence, this is let us should be deeply reflective of things, I have a few poems to commemorate. Thoughts on security tracing incidents The past two peach kill three, now guard to find students. Overlord defeated in the book in mind, soup Yao not think already. Gentleman Wen Ruyu, curl Lady ya like yoga. Advised June Mo Learn this both, ruin laughter through the ages.

5.9 Closing Notch The shape-following function in Flash, when you add motion, will have a more standardized, more flexible design. In other hands, your character will have the right anatomical design. At least sometimes when you're making animations, you get a way to make outstanding progress in a design that requires a realistic style. Therefore, animation techniques require details that are limited to a certain extent. A specific problem is to bend the arms and legs in their joints, often cre

useful to Hard-code abreakpoint at a given point in a program, even if the code was not otherwisebeing debugged (E. G. When an assertion fails). 1 Start Debugging:[email protected] ~]# python epdb1.py>/root/epdb1.py (4)? ()b = "BBB"(PDB) n>/root/epdb1.py (5)? ()c = "CCC"(PDB)>/root/epdb1.py (6)? ()Final = a + B + C(PDB) List1 Import PDB2 A = "AAA"3 Pdb.set_trace ()4 B = "BBB"5 c = "CCC"6-final = a + B + C7 Print Final[EOF](PDB)[EOF](PDB) n>/root/epdb1.py (7)? ()Print final(PDB)

the waking, sometimes we want to collect from the Google problem, I found that Google included a lot of invalid pages, what is invalid page? Is that he included my article page except for some assorted things, Especially my catalogue, and later a check, found that their site label put a lot of actual combat, the estimated Baidu spiders are not easy to climb, are some repeat and repeat the channel, so I put all the site label removed, only keep the article directory, it seems that this measure,

Problem: How do I activate the Active Desktop (active Desktop) in an application? In general, users can right-click on the desktop and choose Active Desktop =〉 "view by Web page" to turn on/off the Active Desktop feature. Is there a function that can be invoked in a program to implement operations on the Active Desktop? In addition, how do you determine that the user activates or cancels the Active Desktop? Answer: Before you answer this question, let me give you an important warning. That is

Suppose there is a tens of millions of tables, taking 1 to 10 data;SELECT * FROM table limit 0,10;select * FROM table limit 1000, 10;The two-statement query time should be completed in milliseconds;SELECT * FROM table limit 3000000, 10;You may not have thought that this statement was performed between 5s or so;Why is the difference so big?Maybe MySQL is not as smart as you think, for example, you want to query 10 data after 300w start, MySQL will read 300w plus 10 so much data, but filtered back

is a simple and rude method, the program directly control the database connection, need access to connect from the database server, perform the required operation after the release of the connection, This may be a viable option in small local programs or in projects with low concurrency requirements, which can withstand 100 or so concurrent accesses at that time, but only for a short period of time, but for a long period of high load, the entire syst

. This is a very rude way, and for small and medium-sized systems where updates are not very high, this approach will basically solve the problem.Another way is for the application to keep the updated data in its native memory (or in a centralized cache) and read from native memory if it needs to read the data directly after the write data is complete. The disadvantage of this approach is that the complexity of the application is greatly increased, an

the above analysis, the optimizer does not really use the index SEEK, for the sake of security (so-called plays safe) to considerI'm starting to get messy again, that is, with RECOMPILE and option (RECOMPILE), there is a sense of imaginative achievement here inexpressible in both ways.This is the reason why the execution plan for index seek is compiled even though the specific parameter values are known in the process of compilingI've always found a similar explanation of what I've been reading

, '/% '); Look, it's easy to find out. 　　 Instead of writing a large stored procedure like before, it's simply rude. Summary, the way to store the path in the multi-level query is very convenient, and in the query directly subordinate to a slightly more complex point. There is also a clear drawback, that is, the size of the path is specified, so theoretically it is not possible to carry out an infinite level of storage, the larger the path value is se

Tags:. JSON hang body export style bin management conf blankInstallation steps under CentOS via Yum are as follows: statement: Compared to those with the source code installed, less configuration and new log and data directory, this simple and rude, 1 , create a warehouse file, vi /etc/yum.repos.d/ Mongodb-org-3.4 .repo 2 , copy the following configuration, save exit [MongoDB -org-3.4 "name =mongodb Repository baseurl = Https:// repo.mongodb.

data returned by a query is empty (whether the data does not exist, or a system failure), we still cache the empty result, but its expiration time will be very short, up to a maximum of five minutes. The default value of this direct setting is stored in the cache, so that the second to the buffer to get the value, and does not continue to access the database, this method is the most simple and rude. Pseudo code Public Object Getproductlistnew () {

who is the driver table, which is the table, and when dealing with such problems, the MySQL optimizer uses a simple and rude workaround: Which table has a small result set, which table is the driver table, Of course, the MySQL optimizer actually handles a lot more complex, for reference: How the MySQL optimizer chooses the index and join order. Note: In the explain result, the table that appears in the first row is the driver table. To continue the P

directly call the method directly to the end of the dry, simple and direct rude. Imagine a very simple scene, such as a toggle effect, and click on a button to toggle the color. Written in an imperative way, we must write this, if the current color makes it a different color. If you think about it, it can be subdivided into two behaviors, one for state judgment and the other for DOM manipulation. Then what is declarative?? Declarative Declarative is

until the current transaction is visible.3.2 Go to the two-level index casebool Lock_sec_rec_cons_read_ Sees (const rec_t* Rec, const dict_index_t* Index, const readview* view) {Ut_ad (Page_rec_is_user_rec (rec)); if (Recv_recovery_is_on ()) {return (false ); } else if (Dict_table_is_temporary (index->table)) {return (true ); //the page_max_trx_id field on the index page. trx_id_t max_trx_id = page_get_max_trx_id (Page_align (rec)); Ut_ad (max_trx_id > 0 ); retu

and the quartz are the Task Scheduler Framework , which simply means that the program can execute the code you want to execute at a certain moment. Previously in the project, the simple use of quartz, in the beginner's time also touched the timer API call. Before simply recording the difference between them, now go back and tidy up ~ 1. Different origins: The timer is provided directly by the JDK, the invocation is simple and rude, and no addit

point called connection. There are three types of inner, left and right, where we don't start talking about three different ways (because I can't tell myself!). If you want to know the Google Cartesian product, SQL multi-table Joint query 10 Article Nine will speak, only how to use, which is good.First, release the conclusion (in general):1), if the Table1 conforms to the condition data is much larger than table2, and table2 data is very many, with left join;2), if the Table1 meets the conditio