libreoffice basic programming

parameters of the all method * This time the Promise.all method maintains a state, which is determined by the state of the multiple asynchronous tasks that are passed in * when the state of multiple asynchronous tasks becomes resolved, then all state is resolved, But as soon as the state of an asynchronous task becomes rejected, the state of all becomes rejected * */ p1 P2 is two promise in the following method only if p1 p2 is resolved, the following function method Promise.all ([p1, p2]) is e

. When hibernation is awakened, it will see if the precursor is the head node, and if so, the turn to unlock it. So if you exit the blocking state, look at the precursor on the one hand and wake up on the other. If it is an exclusive lock, it means that only someone else releases the lock to get a lock. Public final Boolean release (int arg) {if (Tryrelease (ARG)) {Node h = head;if (h! = NULL H.waitstatus! = 0) UNPA Rksuccessor (h); return true;} return false;} After the release succeeds, it f

(enemy1.name); Print (ENEMY1.HP); Enemy1.name = "Mary"; Print (enemy1.name); Enemy enemy2 = new Enemy (); Enemy2.name = "small Two"; Print (Enemy1.name + "-" + enemy2.name); Enemy1. Move (); Enemy2. Move (); }} The field of class Enemy {public string name;//public can access public int hp through the object ; public void Move () { Debug.Log (name + "Moving"); } public void Attack () { Debug.Log ("attacking")

')4 Print(filestats)5 6Shutil.copy ('F:\\python\\book\\ch7\\test.txt','F:\\python\\book\\ch7\\test2.txt')7Shutil.move ('F:\\python\\book\\ch7\\test2.txt','F:\\python\\book\\test2.txt')8Os.rename ('F:\\python\\book\\test2.txt','F:\\python\\book\\test3.txt')9Os.remove ('F:\\python\\book\\test3.txt')Seven, directory programming① get current directory: OS module's GETCWD () function② Get directory Contents: OS module's Listdir () function③ Creating a dire

Experiment 2 BASIC programming under Linux I. Purpose of the experiment 1. Master Vim Compiler 2. Master the use of GCC compilers 3. Understanding the fork () procedure second, experimental tools and equipment 1. Experimental equipment: computer (with CD-ROM) one. Iii. knowledge of experimental preparation 1. Vim's editor Using syntax: Vim There are three modes of VIM: Command mode, insert mode, last line

Basic Control of multi-thread programming in Linux Basic thread control 1. thread creation Int pthread_create (pthread_t * pid, pthread_attr_t * attr, void * (start_routine) (void *), void * arg ); Pthread_create creates a thread. this thread will execute the start_routine function. the parameters of this function are provided by arg. you can call pthread_exit to

the data is and can access any of its elements directly. Data Block partitioning: For any data source, for non-indexed data, different tasks now have a block of data, the size of the block may not be the same. Interleaved partitioning: This approach optimizes the processing of data items at the top of the data source. This is used when the query includes SkipWhile and TakeWhile. At this point each task corresponds to a small group of data (for short, stripes). Task

Java concurrent programming practical study note object combination and basic construction moduleChapter 4 object combination 4.1 Build a secure Class 4.2 instance closed @ThreadSafepublic class PersonSet { @GuardedBy("this") private final Set The object myset of the personset is encapsulated, but the security of the person is unknown. It is also called the java monitor mode to use a private lock to prot

have mutexes, Add_to_list, and list_contains as member variables and member functions of a class than as global variables, because the mutex is more relevant to the data it is protecting. When you add other member functions to access shared data, you also need to create lock_guard instances in these newly added functions. However, it is important to note that if a member function returns a pointer or reference to a shared data, it can cause the protected data to be accidentally accessed or modi

caller. The interruptedexception exception is thrown again. If an exception cannot be thrown, the interrupt method that invokes the thread resumes the interrupt, and the upper layer code sees that an interrupt was thrown. For example: Publicclasstaskrunnableimplementsrunnable{blockingqueue 5.5 Synchronization Tool ClassLatching: CountdownlatchFuturetask: Asynchronous EventSignal Volume: Counting semaphoreFence:Latching is used to wait for events, and fences are used to wait for processes. Fence

tracks it. Python There are several built-in data types. Here are some of the more important ones: 1) booleans[Boolean] or true[true] or False[FALSE]. 2) Numbers [Numeric type]can beintegers[integer] (1and the2),Floats[FloatingPoints] (1.1And1.2）、Fractions[Score] ( theAnd2/3); even theComplex Number[plural]. 3 ) strings Span style= "COLOR: #222222" >[String type] Unicode character sequence, for example: a copy of HTML document. 4 ) bytes [bytes] Byte Array

(); } }); } @Override protected void OnDestroy () {Super.ondestroy (); MbackgrouNdthread.exit (); } private Final Handler Muihandler = new Handler () {public void Handlemessage (Message msg) {switch ( Msg.what) {case SHOW_PROGRESS_BAR:mProgressBar.setVisibility (view.visible); Break Case HIDE_PROGRESS_BAR:mText.setText (string.valueof (MSG.ARG1)); Mprogressbar.setvisibility (view.invisible); Brea

Preface: Before learning the use of nsurlsession, learn a good article about Nsurlsession "from nsurlconnection to Nsurlsession" or a domestic translation "from the Nsurlconnection to Nsurlsession ", or do not have to learn my blog Park notes directly to learn from the nsurlconnection to Nsurlsession" is also possible, this article on the use of nsurlsession has a very detailed discussion. But first of all, this paper briefly introduces the basic of N

Range Default value Representation method Example Char 2 \u0000 to \uffff ' \u0000 ' ' tags, which can be translated using \u and special characters ' A ', ' \u2122 ', ' \ n ' Commonly used char characters and translation characters form of translation Name Unicode value \ n Line break \u000a \ r Enter \u000d \ t Tab \u0009

1. Plastic (base) int basic integral type Long Long integer signed signed (can differentiate positive and negative) unsigned unsigned, negative number will be converted to positive (02) floating point Data flot single-precision floating point type, 6 digits after the decimal point (6 digits of valid digits) Dou BLE double-precision floating point, reserved for 15 bits (15 digits) (03) character data (used to denote real numbers with decimal points) Ch

was successful. This is followed by some basic grammar learning in Scala. val Variable declaration: declares a Val variable to hold the expression's computed result, which is immutable.Val result = 1 + 1 Subsequent constants are available for continuation, Eg:2 * result However, the Val constant declaration does not change its value, otherwise it returns an error. var variable declaration: DECLARE var variable, can change the refere

Reply content:Tiobe's online explanation of rating is below. Can see, Tiobe is in accordance with the search engine query number decision rating, and the industry has no relationship, so every year the beginning of the season, C CPP to be elevated, because college students new admission, the introduction of C CPP a lot of things do not understand to help search engine http://www. Tiobe.com/index.php/con tent/paperinfo/tpci/tpci_definition.htm Ratings The ratings is calculated by counting hi

+idx: This is a graphic caption, can only be converted software with subtitles, large volume. 3, the title: Online less, more special effects than SRT. External subtitles Some basic notes: When using external subtitles, to ensure that the subtitle files and video files are placed in the same folder, and to ensure that the same file name, but do not modify the suffix and identification (common logo has CHS, GB, CHT, Big5, eng five kinds, where CHS and

I. Concerns in this article: • Introduction to Shader and program objects• Create and compile a shader object• Create and link a program object• Obtain and set the uniforms• Get and set attributes In OpenGL ES, each program object has only one vertex shader object and one fragment shader object to connect to it. Shader: similar to the C Compiler Program: similar to C linker The gllinkprogram operation generates the final executable program, which contains the hardware commands that can finally b

Serial Port is short for serial port, also known as serial communication interface or COM interface. Serial communication refers to the communication mode that uses the serial communication protocol (Serial Communication) to transmit data from one bit to one bit on a signal line. Serial Port according to electrical standards and protocols, including RS-232-C, RS-422, RS485 and so on. 1. Serial Communication In serial communication, data is transmitted on a single line with a 1-Bit Wid