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C ++ code implementation tutorial for the city of the sky, and code tutorial for the city of the sky C ++ code implementation tutorial #include #include using namespace std;enum fy{ d1 = 262, d1_ = 277, d2 = 294, d2_ = 311, d3 = 330, d4 = 349, d5 = 392, d5_= 415, d6 = 440, d6_= 466, d7 = 494, z1 = 523, z1_ = 554, z2 = 578, z2_ = 622, z3 = 659, z4 = 698, z4_ = 740, z5 = 784, z5_ = 831, z6 = 880, z6_ = 932, z7 = 988, g1 =

.getTransaction (). commit ();} To update and modify some fields across sessions, use session. merget () to merge the field content. @Test public void testUpdate6() { Session session =sessionFactory.getCurrentSession(); session.beginTransaction(); Student s=(Student)session.get(Student.class, 1); s.setName("zhangsan6"); session.getTransaction().commit(); s.setName("z4"); Session session2 =sessionFactory.getCurrentSession(); session2.beginTransa

Js Regular Form Knowledge summary The form is:1. What is RegExp? RegExp is an abbreviation for the regular form. The RegExp object is used to specify what is retrieved in the text.2, define Regexp:var + variable name =new RegExp ();3. The RegExp object has 3 methods:1) test () retrieves the specified value in the string, and the return value is true or false.var p1=new Reg ("E");d Ocument.write (Reg.test ("Welcome to china!"));2) EXEC ()var p1=new Reg ("E");d Ocument.write (Reg.exec ("W

Sometimes with the editor more, shortcut keys easy to remember confusion, so I just remember the most useful shortcut keys on the line, other efficiency is not high to use the time to check it is not too lateHere are the 20 keys that I used most often since I used androidstudio, and what I think is the most useful one.To share with you:1. Format code: CTRL+ALT+L2. Auto-Import Package path: Ctrl+alt+o3. Rename file, class name, variable name: SHIFT+F64. Undo operation: Ctrl +

containing ed or at charactersgrep ' [a-z]\{7\} ' *.txt the current directory, ending with. txtThe functionality of the WC (Word Count) command in a Linux system counts the number of bytes in a specified fileWC [Options] File ...-C Count bytes.-L counts the number of rows.-M counts the number of characters. This flag cannot be used with the-C flag.-W count words. A word is defined as a string separated by a blank, a jump, or a newline character.-L Prints the length of the longest line.WC Test.t

First, the state 1. Running or waiting in the running queue for [ready queue]), denoted by the status code R2. Interrupt status (dormant, blocked, waiting for a condition to form or receive a signal), denoted by the status code S3. Non-interruptible status (the signal does not wake up and is not operational, the process must wait until there is an interrupt), using the status code D to indicate4. Zombie State (The process has been terminated, but the process descriptor exists until the pare

The string type is immutable and therefore cannot be used directly for assignment. For example a string HelloWorld, want to replace O to Z, then only replace first, and then iterate.strings="helloworld"Hello=strings.replace ('o', ' Z ' ) for in enumerate (hello): Print index,stringThere is another way:Import stringtable=string.maketrans ('o','z') for inch Enumerate (strings.translate (table)): Print index,stringDisplay effect:0 h1 e2 l3 l4 z5

assembly language. We execute the command objdump-d a.out >log.txt disassembly and redirect the results to the Log.txt file, and then parse the Log.txt file.found that the function void print (int i) was compiled after: (note that its function signature becomes--_z5printi)found that the function void print (String str) was compiled after: (note that its function signature becomes--_z5printss)We can see that after compiling, the name of the overloaded function is changed and is no longer print!

is a reliable signalb, reliable signal support queuing, not lost, real-time generationc, the communication between the process and the system is unreliable signal (when the system detects that the process is triggering some errors to send to the process is unreliable signal), in the Industrial control neighborhood generally use real-time signal4, the source of the signalHardware: The operating system detects a hardware work exception and sends a signal to the process that is using the hardwareS

Key points of the algorithm:KNN (K-nearst neighbor)1:k:= nearest neighbor Point, d:=training set of data2:for (point z to be measured)3: Calculate the distance between z and each sample (x, y)4: Select a collection of K training samples nearest to Z5: Count The 4th step to get the point of what kind of more, then Z belongs to which category6:end forData:Libraryi (ISLR)Names (Smarket) #R自带数据KNN Code:Attach (Smarket)Train= (yearTrain. X=cbind (LAG1,LAG2

registers, commands, you can think of this as a strong version of the Clipboard, of course, its function is more than the Clipboard so simple. If you want to see the official documentation about VIM section:: Help RegistersAccording to the Official Handbook: Vim has 9 types of registersThere is nine types of registers:registers E3541. The unnamed register ""2. Numbered registers "0 to" 93. The small delete register "-4. Named registers "A to" Z or "A to" Z