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synchronization are primarily resources that can be shared against global variables. The above A (%rip) represents the value of the global variable A, and%eax is a register. The first instruction indicates that the value of a is stored in the EAX register, and the second instruction adds 1 to the value in the EAX.Let's consider a situation where there are now two threads, A, B, that call the Add () function, so the expected value for a is 2. If a con

Note: The corresponding relationship between tag properties and DOM object properties is the same for most 2 of them, for example the IMGOBJ.SRC attribute corresponds to SRC attributeException: ClassNameCSS properties correspond to DOM object properties, 2 by Obj.style.css property name, for example:Obj.style.widthObj.style.backgroundIf the CSS property has a horizontal line such as Border-top-style, the

To find the root of the equation ax^2+bx+c=0, consider respectively: 1, there are two unequal real roots 2, there are two equal real roots # include "C language" to find the root of the equation ax^2+bx+c=0, respectively, consider: 1, there are two unequal real roots 2, there are two equal real roots

One, the child process has installed the Pre-removal script returned an error number 1 or 2 workaround:sudo gedit/var/lib/dpkg/statusFind package: Remove the description of this section and delete it before the next package:xxx. After the archive, the operation will be OK.Second, the child process has installed the Post-Installation script returned an error number 1 or 2 workaround:sudo rm/var/lib/dpkg/info

Drive develops reading notes. 0.04 Linux 2.6 Platform device register platform equipment registration 1/2 Total 2 articlesDocumentation/driver-model/platform.txtDevice Enumeration the~~~~~~~~~~~~~~~~~~as a rule, platform specific (and often board-specific) Setup code'll, register platform devices: - the intPlatform_device_register (structPlatform_device *Pdev); the the intPlatform_add_dev

Remove any 2 numbers from the array to determine whether they are the input number sum, the time complexity is 0 (n^2), and the spatial complexity of 0 (1)Assuming the data is already sorted.#include 　　Remove any 2 numbers from the array to determine whether they are the input number sum, the time complexity is 0 (n^2)

DOM4J cannot save the XML file as UTF-8, Invalid byte 2 of 2-byte UTF-8 Sequence-hxzon hands-gdo These days began to learn dom4j, on the Internet to find an article on the dry, very fast, but found a problem is not to UTF-8 save the XML file, save again read out when will report "Invalid Byte 2 of 2-byte UTF-8 sequence

One plus cell phone 2 fingerprint identification setup diagram steps: 1, we in a plus mobile phone 2 desktop, we click "Settings" click it open Access, as shown in the following figure. 2, then in the open access to "settings" you will see a "Fingerprint and password" settings option, and then we have fingerprints, the process will be longer. 3

number of Partition (hash Partition is a logical concept, all the set of hash Partition is called hash table, that is, a hash table is composed of multiple hash Partition, and a hash Partition is also made up of several hash buckets);2. determine the drive result set : Table T1 and T2 The result set with the lower amount of data in the result set when the predicate condition specified in the target SQL is applied (if any) is selected by Oracle as the

according to 2 a latitude and longitude point, calculate this 2 distance between a latitude and longitude pointThe formula for calculating the distance between any two points on a sphere can be found in the following articles on Wikipedia. Great-circle distance Haversine formula It is worth mentioning that Wikipedia recommends the use of the Haversine formula, the reason is that the great-

JS variable names can consist of _, number, letter, $, and cannot start with a number. A global variable of $ is defined in JQuery.Declaring variables with var variable names, if not Var, will contaminate the global.JS variable types include:① Numeric type② String Type③ Boolean type (True,false)④ Null typevar a = nullObject type not defined: nullvar c = {Name:dee, age:29}//Object typeConsole.log (C.name);Console.log (c[' name ');⑤ undefined typevar b = undefined;Primitive types (numeric, strin

-click "Login" and choose "New Login": 2. Enter login name, can be SQL Server account number, can also be a Windows account ( Original source: http://blog.csdn.net/dba_huangzj/article/details/38705965 3. If SQL Server authentication is selected, you can enter a password and a confirmation password, in some cases you can use a blank password (not recommended, of course), and the following are the options you need to explain: enforcing password poli

Second-close-up observation (2) Using evaluate/modify (for evaluation/modification) The last way to display the value of a variable or code block is the evaluate/modify (Evaluate/Modify) window. This window can be opened like a patrol, and the evaluate/modify (Evaluate/Modify) window will pop up when you right-click on the line of code you want to evaluate/modify (evaluate/modify) and select "Debug|evaluate/modify". This window is used to evaluate a