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moves the n characters of the line to the right. For example 20 0 or function key [Home] This is the number "0": Move to the front of the line prompt (common) $ or Function key [End] Move to the last face of this line prompt (common) X Remove one character backwards Nx N is a number that continuously deletes n characters backwards. For example, I want to delete the 10 characters consecutively, "

, many commands can be used with the number, such as delete 10 characters 10x, after the current position after inserting 3! , 3a! W moves forward one word (the cursor stops at the beginning of the word), and if it is at the end of the line, go to the start of the next line. This command is fast and can replace the L command.b Move backward one word 2b move backwards 2 wordsE, with W, except that the cursor stops at the tail of the word.GE, with B, th

N and n is extremely helpful! Can let you repeat to find some of the keywords you search! : n1,n2s/word1/word2/g N1 and N2 are numbers. Look for the string word1 between N1 and N2, and replace the string with Word2! For example, search for vbird between 100 and 200 rows and replace it with Vbird: ": 100,200s/vbird/vbird/g". (common): 1, $s/word1/word2/g look for the word1 string from the first line to the last line, and replace the string with Word2! (common): 1, $s/word1/word2/gc look for the

multiple values to a template, each of which corresponds to a format character. A ="I ' m%s. I ' m%d year old"% ('Vamei', 99)Print(a)#You can also use dictionaries to pass real valuesPrint("I ' m% (name) s. I ' m% (age) D- old"% {'name':'Vamei',' Age': 99})The format can be further controlled in the following ways:%[(name)][flags][width]. [Precision]typecode(name) is namedFlags can have +,-, ' or 0. + Indicates right alignment. -Indicates left alignment. ' is a space that fills a space on the l

include. Pay special attention to the inline and templateThese are two "advanced" mechanisms in C + +, but they force us to include implementations in the header file, which makes a significant contribution to adding the contents of the header file and slowing down the compilation speed. Before using, weigh it. Comprehensive skills Precompiled header File (PCH)Put some common but infrequently changed header files in the precompiled header file. This way, at least in a single project

number (depending on display length)Percent% character "%"The format can be further controlled in the following ways:%[(name)][flags][width]. [Precision]typecode(name) is namedFlags can have +,-, ' or 0. + Indicates right alignment. -Indicates left alignment. ' is a space that fills a space on the left side of a positive number to align with a negative number. 0 means using 0 padding.Width indicates display widthsPrecision indicates the precision after the decimal pointLike what:Print ("%+

shmsys:shminfo_shmseg=20: Semmni Meaning: The maximum number of semaphore identifierer in the system. Set method: Set the value of this variable to the maximum of all instances of Oracle on this system Init.ora That processes of that value plus 10. Example: Set semsys:seminfo_semmni=100 Semmns Meaning: The maximum number of emaphores in the system. Set method: This value can be computed in the following way: The Initsid.ora inside of each Oracle instance The sum of the values of the processes (

Res.onload =null; 13 Callback (); 14 _self.loadedui[modelname] =true; 15 } 16 Res.onerror =function () { 17 Thrownewerror (' res error: ' + modelname+ '. js '); 18 } 19 } 2. The naming of all components is best kept consistent, and callback calls are also more convenient. You can also add parameters as

, so can only be based on its own set of a code page to decode, For example, according to Japanese decoding, the solution will be "Teresa Teng" these three words. If the keyword is wrong, the natural query is not. Here are three CDDB query "Teresa Teng" results URL: http://www.freedb.org/freedb_search.php?words=%26%2337011%3b%26%2320029%3b%26%2321531%3ballfields=no Fields=artistfields=titleallcats=yesgrouping=none http://www.gracenote.com/music/search-adv.html?q=qartist=%e9%82%93%e4%b8%bd%e5%90%

Foreground main code: 001 002 $ (function () { 003 var $DG = $ ("#dg"); 004 $dg. DataGrid ({ 005 URL: "Servlet/list", 006 width:700, 007 HEIGHT:250, 008 Columns: [[{ 10X Field: ' Code ', 010 Title: ' Cod

lock independent objects directly, rather than locking the entire memory space to be allocated. The allocation of small objects in the thread-local area can completely ignore the existence of the lock. Without the lock request and release, the speed of the thread-local small object's access is greatly increased. This new memory allocator dramatically increases the speed of memory allocations and speeds up to 10x. At the same time, art's garbage col

On the weekends. The environment for developing an Android application using ADT in Eclipse is, of course, as we all know, that the Android emulator simulator is really slow to start and run, and is "legendary", hehe. Of course, Intel last year developed and posted a driver for Android emulator on Google's Android website, dramatically boosting the startup and operational efficiencies of Android emulator on the Intel x86 platform, This improves the efficiency of Android application developers wh

We are using Firefox on some sites to see this display:Now time is: 108 year January 26 And the IE browser's words will show the normal:Now the time is: January 26, 2008 The reason is javascrīpt compatibility problem var today = new Date (), var year = Today.getyear (); Inside Firefox getyear returns the value of "Current year-1900", and Microsoft makes a change:When today's year is greater than or equal to 2000, add 1900 to the returned 200X (instead of

/, interested can download to try. The second is shark,hive on Spark, which migrates the Hive syntax to Spark, translates the SQL into Spark run, and directly reads MapReduce's metabase and corresponding data. The project also won the best Demo award at the 2012 SIGMOD Conference, now in Alpha, and will soon have a formal release, in the hope that it will be a fully compatible existing hive, fast 10x-fold cow b product. Spark with the Talk (ii)--Inst

Caffe I/O model, and summarizes the I/O model overall architecture. Due to the introduction of the GPU, we need to manipulate two different storage bodies simultaneously: main memory is controlled by North Bridge, and the CPU is address bus, control bus and data bus, the memory is controlled by the South Bridge, and only the PCI bus is connected with the CPU. Because there is only one data bus between the CPU and the GPU, the CPU does not have direct access to the memory space, and a large port

, including Iphone,ipad,android,windows Phone,microsoft surface,desktops, and so on. It allows users to create rich dashboards that apply to all devices without compromising the functionality and maintainability of the Web application. Canvcasjs has a very beautiful theme and more than 10x faster than the traditional Flash and SVG charts-generating a lightweight, beautiful and responsive meter diagram. 3. Chart.js Chart.js is a simple, object-o

compatibility dataframe-based machine learning API E Merges as the primary ML Api:with Spark 2.0, the SPARK.ML package, with its "pipeline" APIs, would emerge as the prim ary Machine learning API. While the original Spark.mllib package is preserved, the future development'll focus on the dataframe-based API. Machine learning Pipeline Persistence:users can nowsave and Loadmachine learning pipelines and models AC Ross all programming languages supported by Spark. Distributed algorithms in r:added

Previously, I thought the debugging functionality provided by GDB-Fortran program is quite limited due to experiences Of a couple of failed attempts to print allocatable arrays. However, having given several another tries today, I discovered the GDB does support printing values of allocatable array s, although it may be a little inconvenient. Now, let's see the details:We have the test code as follows, in which a derived type cmp, an allocatable array a and a static array b is defined.Program Te

-name-resolve, Max_connect_errors doesn't even work (see the previous paragraph). Firewalls are a more appropriate solution, usually I will block the 3306 port, whether it is a public network or intranet port, only specific applications can access and connect to MySQL.I will usually setmax_connect_errors=100000, so I can avoid any "dual configuration" and make sure it doesn't get in the way. max-connections --The default value is 151. I've seen a lot of users set him up, mostly b

words, in two steps:1. Addition and subtraction of elimination elements2. Return to find unknown value Gaussian elimination is one such process.The following is a small example to specify 0. Solving equations There is a ternary-once equation set:⎧⎩⎨2x+y+z=16x+2y+z=−1−2x+2y+z=7①②③{2 x + y + z = 1①6 x + 2 y + z =−1②−2 x + 2 y + z = 7③\begin{cases} 2x+y+z=1 amp;①\\ 6x+2y+z=-1②\\ -2x+2y+z=7③\\ \end{cases} 1. Eliminate X ①x (−3) +②①x (−3) +②①x (-3) +② get0x−y−2z=−4 0 x−y−2 z =−4 0x-y-2z = 4 ①+③①+③①+