scratch coding

=" Wkiol1hmn4iw1ys9aaayj1g13uy716.png-wh_50 "/>Since the device files were created by the Udev program, we do not have udev at this time,All/dev/directories are empty14. Compile the kernel so that it can directly identify the device files[[email protected] ~]# Cd/usr/src/linux[[email protected] linux]# make menuconfig//Select to directly identify device file option device Drivers--->Generic Driver Options---> [*] Maintain a DEVTMPFS filesystem to Mount At/dev [*] AutoMount DEVTMPFS At/dev, after

First, the goalBuild your own Linux distributionSecond, the Operation procedureConfigure the basic Development environment (host system)--staging system--target systemNote:Host system-Compile LFS Master System (CentOS 7 64-bit Minimal Install)Temporary system--the transition system needed to produce the target systemTarget system--self-compiled LFS systemThird, the requirements Learn more about Linux commands in the compilation process---record Learn every function---Use the software to

using them as static resources.The following specific record, how to start from scratch under idea, step by step to build Springboot Web application, here is Maven for dependency management, novice start, have any questions, please refer to Springboot official website.It is necessary to note that Springboot relies on a JDK version of 1.8 and above.(1) file->new, choose Maven, create an empty project, and go directly to next.(2) Fill in the project na

) 2.8.1Find (GNU findutils) 4.4.2GNU Awk 3.1.6/usr/bin/awk-/usr/bin/gawkGCC (Ubuntu 4.4.3-4ubuntu5.1) 4.4.3g++ (Ubuntu 4.4.3-4ubuntu5.1) 4.4.3(GNU libc) 2.19GNU grep 2.5.4Gzip 1.3.12Linux version 2.6.32-38-generic ([email protected]) (GCC version 4.4.3 (Ubuntu 4.4.3-4ubuntu5)) #83-ubuntu SMP Wed Jan 4 11:12:07 UTC 2012M4 (GNU M4) 1.4.13GNU make 3.81Patch 2.6Perl version= ' 5.10.1 ';GNU sed version 4.2.1Tar (GNU tar) 1.22XZ (XZ Utils) 4.999.9betaGMP MPFR MPC Library needs to be installedThe speci

("GetInfo"). Getannotations (); //annotation Arrays for(Annotation an:annos) {if*a,instanceofmyannotation) {System.out.println ("An IS" +an ); System.out.println ("Name in the note:" +( (Myannotation) an). Name ()); System.out.println ("Age in Annotations:" +((myannotation) an). Age ()); } } } Catch(Nosuchmethodexception |SecurityException e) {E.printstacktrace (); } } Public Static voidMain (string[] args) {myannotationtest Mt

follows: Public voidDownloadhistory (String name1, string name2,httpservletrequest request, httpservletresponse response)throwsioexception{OutputStream out=NULL; String TimeStamp=NewSimpleDateFormat ("Yyyy-mm-dd"). Format (NewDate ()); //Create worksheets, sheet objects, rows, and cells. //Create a second row in sheet//create cells and set cell contents//Adjust column widths//remove the values from the database into the table//The above part of the code is the same as before, in the output Exce

(toolbarint==1) {print ("toolbar1 was clicked");}} Gui. Endgroup ();}}Gui. Endgroup (); Is the end distance of his nearest gui.begingroup ();Below we can take advantage of the nesting of control groups to achieve some special effects, such as the video loading buffer bar ~The specific code is as follows: Public classNextgroup:monobehaviour { Publictexture2d bgimg; Public floatplay=1.0f; //Use this for initialization voidStart () {}//Update is called once per frame voidUpdate () {Play-=0.

a slash (*/) such as: /* * This is a multi-line * (Block-level) Comment */Iv. statementsThe statement in ECMAScript ends with a semicolon, and if you omit the semicolon, the parser determines the end of the statement, such as:var sum = a + b // Even if no semicolon is a valid statement-------does not recommend var diff =-A; // recommended---------Valid statementsAlthough the ending semicolon is not required, it is recommended that you do not omit it at any time.V. Keywords and reserved

Line break char ch1= ' \ '; char ch2= ' \ \ '; System.out.println ("ch1=" +ch1); System.out.println ("ch2=" +CH2); System.out.println ("\" Hello world\ "");Results:Ch1= "ch2= \"Hello World"2.3.Floating-point type (float,double) in mathematics, these numbers with decimal points are called real numbers, and in Java, the data type is called the floating-point type, which defaults to the double type in Java. double num1=3.14; float n

) } func Changelabeltext (#textStr: String) {// Implement proxy method println (" Go proxy method ") = textstr }This is the code part of the first page and requires him to accept the agreement.ConclusionI started working on the SDK for the past few days. Use of some knowledge is not covered before, such as 8583 package, UnionPay norms, anyway, much, It is still too little to learn to use something new. So the time to learn Swift is limited. There is only a little time to

browser to download the file immediately, but unlike defer, it is not guaranteed that async scripts are executed in the order they are specified, and it is recommended that asynchronous scripts do not modify the DOM during loading Asynchronous Script -Scripttype= "Text/javascript"Async= "Async"src= "Example1.js">Script>Scripttype= "Text/javascript"Async= "Async"src= "Example2.js">Script>2.3 Properties of the DOCTYPE HTML Public "-//W3C//DTD XHTML 1.0 transitional//en" "http://www.w3.org/TR/xhtm

; Configuration> Execution> executions> plugin> Plugins> Build>Project>In addition to the optional 4, compile Java source code. Run Maven and execute the compile (compile) target. When you are finished, you can find the compiled. class file in the Target/classes directory.MVN CompileExecutes the packaging (package) target. MAVEN will recompile (compile) The source code, execute some test use cases, and finally package

, and then hit by this ray of the object, will trigger the mouse to move the event, and then hit the mouse click on the left button, The mouse click event will be triggered ...The specific core code is as follows:Ray Ray=camera.main.screenpointtoray (input.mouseposition);//from Camera to screen if (Physics.raycast (Ray,out hit))// Ray Collision Detection {// here write mouse click on if (Input.getmousebuttondown (0)) {}else if (...)//other event {}else//mouse over event {}}Of course, the

! " }; } //Perform access Base. OnActionExecuting (Filtercontext); } }2. Add this filter to the filter configuration file, then all actions will pass through this filter Public classFilterconfig { Public Static voidregisterglobalfilters (globalfiltercollection filters) {filters. ADD (NewMvchandleerrorattribute ()); //filters. ADD (New System.Web.Mvc.AuthorizeAttribute ()); //filters. ADD (New Mvcdisposefilter ());Filters. ADD (NewMvcmenufilter ());//Joi

this order?(1) Method one: With-exec first step: # find/etc/-type f-exec grep-il "telnet" {} \;/etc/bash_completion/etc/bash_completion.d/qemu/etc/services Second Step: # find/etc/-type f-exec grep-il "telnet" {} \; | Wc-l3(2) Method two: with the pipeline# find/etc/-type F |grep-il "Telnet"(Error, indicates whether the file name contains Telnet)# find/etc/-type F | Xargs grep-il "Telnet"/etc/bash_completion/etc/bash_completion.d/qemu/etc/services# find/etc/-type F | Xargs grep-il "Telnet" | Wc

transmitting data4 classes are abstract classes can not be instantiated, need to pass 4 abstract classes provided by the method to implementV. InputStream Architecture 5.1, byte input stream base classFileInputStream: Reading data from a fileStringBufferInputStream: Rotate the string into the input stream, this class is obsolete and replaced by StringbufferreaderPipedInputStream: Connecting a PipedOutputStream It is a pipeline to the inflowBytearrayinputstream: The byte array is rotated as an i

out = new PrintStream (Response.getoutputstream ());Out.println ("Out.println ("Out.println ("Out.println ("Out.println ("OUT.PRINTLN ("Your World is:" + Worlds + "Out.println ("}}In addition to writing directly back to the output page in the servlet's processing method, you can also respond to requests in a JSP manner. In fact, JSP is a special servlet, it is compiled by the Web container (such as Tomcat) generated servlet, interested in the data can be consulted, specifically the way the page

. Determine if there is a "Denny" key if(Permap.containskey ("Denny")){ //8. If present, obtain the corresponding value according to the keyPerson P =permap.get ("Denny"); System.out.println ("Name:" +p.getname ()); System.out.println ("Age:" +p.getage ()); } System.out.println ("======= Traversal hashmap======="); //Traverse HashMap//The key collection is traversed first, and the keyset method returns the set setSetPermap.keyset (); IteratorKeyset.iterator (); while(Iterator

(); Allset.add ("A");//add ElementAllset.add ("B");//add ElementAllset.add ("C");//add ElementAllset.add ("A");//duplicate element, cannot joinAllset.add ("C");//duplicate element, cannot joinAllset.add ("D");//add ElementAllset.add ("E");//add ElementSystem.out.println ("Length:" +allset.size ()); System.out.println (Allset.tostring ()); //output Collection Object, calling ToString () }}Four, verify the orderly storage: TreeSet PackageCom.pb.demo2;ImportJava.util.HashSet;ImportJava.ut

/bin/docker run-p the: the-D Apache4. After the configuration is complete, save5. Configure Jenkins UsersIt cannot be built at this time because the Jenkins trigger script is not the root user, so Jenkins is required to be exempt from the user and the user is added to the Docker group, otherwise the container ID is not obtained.[Email protected]:~# vim/etc/sudoers# User privilege specificationroot all =(all:all) alljenkins all(All:all) all[email protected]:~$ usermod-g Docker Jenkins6. Start