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;"). Strip ()If not user_input:Continuecmd = user_input.split () [0]If Hasattr (self,cmd):Func = GetAttr (self,cmd)Func (User_input.split ())def put (Self,args):cmd = args[0]filename = args[1]If not os.path.isfile (filename):Print "File is not exists!!"Return NoneElseFileSize = os.path.getsize (filename)Head_dic = {' cmd ': cmd, ' file_name ': os.path.basename (filename), ' file_size ': filesize}Print Head_dicHead_json = Json.dumps (head_dic). Encode ("Utf-8")Head_struct_size = Struct.pack (' i

Introduction Essentially, WCF is a communication service framework that allows us to use different transmission protocols and different message encoding formats to interact with different WS-* series standards, all these details are handled by the channel stack. In the WCF topic series (8): Deep Channel Programming Model Part 1-design, I have a deep understanding of the channel model in WCF. In this article

Part 4 and 5th of this series discuss how to use Javassist to make local changes to a binary class. This time you will learn to use the framework in a more powerful way to take advantage of Javassist's support for finding all specific methods or fields in bytecode. For the Javassist feature, this feature is at least as important as its ability to specify bytecode in a similar way to source code. Support for

(!asleep)Countsomesheep ();The program keeps counting sheep when it's not asleep and jumps out of circulation after falling asleep. Because the update to asleep is done in other threads, there is no way for ordinary variables to get the asleep value in time, so it is very appropriate to use the volatile variable.Note that the volatile variable can only guarantee visibility, that is, the variable will always be consistent with the memory variables, bu

Distributed Parallel Programming with hadoop, part 1 Program instance and AnalysisCao Yuzhong (caoyuz@cn.ibm.com ), Software Engineer, IBM China Development Center Introduction:Hadoop is an open-source distributed parallel programming framework that implements the mapreduce computing model. With hadoop, programmers can easily write distributed parallel programs

=NewThreada ("Ta"); //get the main threadMainthread =Thread.CurrentThread (); System.out.println (Thread.CurrentThread (). GetName ()+ "Start Ta"); Ta.start (); System.out.println (Thread.CurrentThread (). GetName ()+ "Block"); //main thread blockingLocksupport.park (Mainthread); System.out.println (Thread.CurrentThread (). GetName ()+ "Continue"); } Static classThreadaextendsthread{ PublicThreada (String name) {Super(name); } Public voidrun () {System.out.println (Thread.Curre

in the loop, causing the loop object to change easily, to copy an object deep, then loop the original object and manipulate the new object.4.windows system, when using CMD to display the output of the Python script print, because the CMD software decoding mode is GBK, if the script is written in UTF-8, then the print output statement needs to be decoded from UTF-8 to Unicode and then encoded as GBK, To display correctly in CMD.5. File Common way: Open multiple files can write: with open () as F

"Notfull" and "Notempty" These two condition.The notfull is used to control write buffering, and Notempty is used to control read buffering. When the buffer is full, the thread that calls put will execute notfull.await () to wait, when the buffer is not full, add the object to the buffer and count+1 the buffer capacity, and finally, call Notempty.signal () Buffer the waiting thread on the Notempty (calling Notempty.await's thread). In short, notfull controls "write to buffer" and wakes the wait

because the constructor cannot produce a return value.13.php does not guarantee an accurate point-in-time for destructor calls.14. An interface can contain constants.　　15. Interfaces can inherit multiple, and interfaces can inherit interfaces.16. Exceptions are exceptions, and exceptions should be used to handle problems rather than control processes17. Parameter types can be set:function func (MyClass $obj) {...}　　18.call and Call_user_function_arra

" #convert number to a name using If/elif/else #don ' t forget to return the result! defRpsls (player_choice):#Delete the following pass statement and fill in your code below #print a blank line to separate consecutive games Print "" #Print out the message for the player ' s choice Print "Player chooses", Player_choice#convert the player ' s choice to player_number using the function name_to_number ()Player_number =Name_to_number (Player_choice)#compute random gu

=FalseGlobalSecret_number Secret_number= Random.randint (0,999) Globalnumber_of_guess number_of_guess= 10Print "New game. Range is [0,1000]" Print "Number of remaining guesses is", Number_of_guessPrint definput_guess (guess):#main game logic goes here GlobalGuess_number Guess_number=Int (guess)Print "Guess was", Guess_numberGlobalnumber_of_guess number_of_guess-= 1Print "Number of remaining guesses is", Number_of_guessifSecret_number >Guess_number:Print "higher!" Print

to SetTimeout () or setinterval (), the string will be parsed as if it were using eval, which is very time consuming.Do not use:SetInterval (' dosomethingperiodically () ', +), SetTimeOut (' Dosomethingafterfiveseconds () ', 5000);And withSetInterval (dosomethingperiodically), SetTimeOut (Dosomethingafterfiveseconds, 5000);-Keep in mind that primitive operators are always more efficient than function calls. Do not var min = Math.min (A, b); A.push (v

request handler class.Next you have to instantiate a server class that, during instantiation, needs to pass in the service-side address and the class of the request handle.3.Then Call the Handle_request () or Serve_forever () method of the server object to process one or many requests.Then, execute the handle_request () or Serve_forever () method of the server object to process one or more requests.4.Finally, call Server_close () to close the socket.Finally, execute the Server_close () method t

|uniq-c |sort-n Multiple pipes, C represents the number of repetitions displayed5) Teefollowed by the file name, similar to a, the specific gravity of a function, the file is written in the following file, while also displayed on the screen|tee ==> + screenTcpdump-nn grabbed the bagTcpdump-nn > 2.logWc-l 2.logTcpdump-nn |tee 2.log is not only displayed on the screen, but also directed to the 2.log inside, the dynamic6) TR is used to replace charactersThe most common is the case conversion: head

Javascript| Programming | objects | inheritance We'll show you how JavaScript implements the object-oriented language: inheritance . At the same time, these examples will show you how to implement the encapsulation of the class. Here, we will not discuss polymorphic implementations. While JavaScript is a scripting language, the object-oriented programming it supp

refer to any character or string except the character $, ', \ \.A single quotation mark is similar to a double quote, but a single quotation mark and its internal value are used as a new string if the special meaning is masked.boy= ' Boy ' echo, like ' $BOY ', ' echo ' like ' $BOY 'The contents of the two echo outputs are not the same, and the previous ECHO has a pair of single quotes.Anti-quote: The shell takes the contents of the backslash as a system command and executes it.Backslash: A back

BBG AAA BB CC% echo A B C D E F G H I | java Subset 3 BBE BBF CCG BB The running time SubsetMust be linear in the size of the Input.

full credit, do not printPermutationsOf points on a line segment (e.g., if you outputP→Q→R→S, Do not also output eitherS→R→Q→POrP→R→Q→S). Also, for full credit inFast. Java, Do not print or plotSubsegmentsOf a line segment containing 5 or more points (e.g., if you outputP→Q→R→S→T, Do not also output eitherP→Q→S→TOrQ→R→S→T); You shoshould print out such subsegments inBrute. Java. Deliverables.Submit onlyBrute. Java,Fast. Java, AndPoint. Java. We will supplyStdlib. JarAndAlgs4.jar. Your may not c

' Lied 'En (MS,A,B)T=ms ()T.ok ()#这是很强大的表现: You can dynamically create many different changes on a class definition that has already been instantiated#在任何情况下, remember that a meta-class or dynamic increase is just a patch that may quickly make a well-defined, clear class hierarchy become a mess, using the following conditions"""At the frame level, when a behavior is mandatory in many classesWhen a particular behavior is added to the purpose of not interacting with a class that provides function