cgm meaning

And since Ruby is a completely pure object-oriented language, anything is an object, the method is an object, and the class is an object ..., so self has a lot of environments that distinguish the self meaning of different environments to better understand the meaning of the program. First level Ruby Code Puts self Print out Main, which represents the default object main. Second, in the definition of class

http://blog.csdn.net/peterwanghao/article/details/40071857 Original Address removeabandoned Meaning and use formerly known as: Using the Druid Connection pool's timeout recycling mechanism to troubleshoot connection leakage issues Summarize: Meaning: Whether to open automatically clean up the leased connection but not return to the thread pool Role: 1. Put in activeconnections when renting 2.DyestroyTask t

the header file is to prevent the header file from being repeatedly referenced.So #ifdef __cplusplusextern "C" {#endif#ifdef __cplusplus}#endif What is the role of it. We will come in the following one by one ways. 3. Deep disclosure of extern "C" The extern "C" contains a double meaning, literally: First, the object modified by it is "extern"; second, the target it modifies is "C". Let's take a detailed interpretation of th

QQ Space burst praise what meaning At present, mobile QQ can be super, space inside the dynamic display is "Super Praise Me", and the mobile phone QQ on the written is "burst praise me", in fact, is a meaning. QQ Space Super Praise How do I do? 1, first of all you find a friend to say, you can see the following point praise button. 2, in accordance with the usual routine is to click on it, this time

http://ssailyang.iteye.com/blog/413518 Turn from: http://stevenit.bokee.com/viewdiary.30578007.htmlAlthough many people will use dsadd and other commands to add users, but dsadd instructions inside does not involve the meaning of Dc,cn,ou, many people do not understand, here is Microsoft's technical support staff's reply, hope to help.CN, OU, DC are the distinguished names in the end strings of the LDAP connection server (DN, distinguished name)The c

Linux "ls-al" displays directory permissions that differ from file permissions:Drwxrwxrwx-rwxrwxrwxIn this case, the row "D" on the directory is a directory, and the next line "-" is a file. In the permission representation of the directory, r is readable, meaning that the directory structure of the directory can be read, and can be understood to show the content when LL. W is writable, meaning that the fil

Guide: "SEO more and more complex, 10 years ago, SEO from the page accumulation of keywords into the chain of construction, and now the SEO from the chain into brand, user experience, socialization. "The above quotes from Zac's insights into the new era of SEO. New media, mobile interconnection, it technology, digital technology, the latest development, leading the internet to carry out a new era. The major search engines for the benign development of the Internet, the search optimization requi

work content is quite messy, must understand constructs the station, must understand the soft article, must understand the server. However, SEO training has to have a focus, not generalities. The most important is based on the current SEO industry needs to train the required talent, outdated training content has little meaning. when will SEO training be able to restore its true meaning? We treat the atti

Often used when connecting db, just do not know what the meaning of the representative ... Often used when connecting db, just do not know what the meaning of the representative ... Rs. OPEN sql,conn,a,b A: adOpenForwardOnly (=0)Read-only and the current data record can only move Down adOpenKeyset (=1)Read-only, the current data record is free to move adOpenDynamic (=2)Can read and write, the current d

1, the meaning of the reference References 变量别名 exist, so in some cases you can substitute pointers for better readability and usability relative to pointers The implementation of the SWAP function is compared to void swap (int A, int b) { int t = A; A = b; b = t;} void Swap (int* A, int* b) { int t = *a; *a = *b; *b = t;} Note: The reference parameter in the function does not need to be initialized, and initialization is done

Article Source: Linux average load average meaningThe meaning of load averageThe average payload (load average) refers to the average utilization of the operating queue of the system, or it can be considered as the average of the operational processes .In the case of road conditions, single-core CPUs and single-lane situations are as follows: The numbers between the 0.00-1.00 indicate that the traffic is very good at this time, without conge

Tags: symbol GPO script conditional expression string meaning BSP nbsp DashFile expression-e filename true if filename exists-d filename If filename is a directory, true-F filename True if filename is a regular file-L filename True if filename is a symbolic link-r filename If filename is readable, true-W filename if filename is writable, true-x filename If filename is executable, true-S filename true if the length of the file is not 0-H filename True

Tags: file run BSP case background POS linux lis Linux The meaning of shell variable $#,[email protected],$0,$1,$2 in Linux is explained:Variable Description:$$The PID of the shell itself (ProcessID)$!PID of the Shell's last running background process$?End code of the last Run command (return value)$-Flag at a glance using the SET command$*All parameter lists. such as "$*" in the Case of "" ", in the form of" $ $ ... $n "output all par

On the physical meaning of negative frequency in spectrum --Reading analysis * Statement: This article is a large number of references to Chen Hui deep, Fang Haiyan of the relevant paper content* This article is the best I've ever read to explain the negative frequency of the spectrum, just to pay tribute to the two authors in this blog post. Absrtact: This paper discusses the physical

In Java programming, we often use the System.out.println () method to output a string, and perhaps we have already guessed that println () is the method name, but what is the system and what is out?This involves the use of a static keyword. For example, the system is actually a class within the Java.lang.And out is a data member (also known as a field) inside the system, but this member is not the basic class, but the object of the Java.io.PrintStream class, and the Java.io.PrintStream class has

previous sibling node is previoussibling indicates what the next sibling node is nextsilbing Gets the value of the element property getattribute Sets the value of the element property SetattribiteIndicates that the replication node clonechild represents the deletion of child nodes removechlidInsert the NewNode node in front of TargetNode with what is represented InsertBeforeThe difference between childnodes and childrenChildNodes gets the element in the child node, the text, the comment node

1. Tdscdma_op_plmn_list4,100,240,0,100,240,32,100,240,112,100,240,128, change to 16 binary Yes0x03 0x64 0xf0 0x00 0x64 0xf0 0x20 0x64 0xf0 0x70 0x64 0xf0 0x80Reference: Http://www.cnblogs.com/bastard/archive/2013/05/09/3068602.html, which mentions 0x03 0x64 0xf0 0x00 0x64 0xf0 0x20 0x64 0xf0 0x70 (46000, 46002, 46007)Then the whole representation: 4 items, respectively 46000, 46002, 46007, 46008Nv65602:location–/nv/item_files/modem/nas/ehplmnDefault value–0x03 0x64 0xf0 0x00 0x64 0xf0 0x20 0x64

Interpolator is used to modify the animation effect, define the rate of change of the animation, can make the existing animation effect accelerated (acceleration), decelerated (deceleration), repeated (repetition), bounced (bounce) and so on.The contents of the document in Android are as follows:Acceleratedecelerateinterpolator rate changes at the beginning and end of the animation are slower, accelerating in the middleAccelerateinterpolator at the beginning of the animation the rate change is s

-party table and placed in the Student table. Course Abandon Maintenance*/@ManyToManyPrivatesetNewHashset(); @ManyToOnePrivateTeacher Teacher; @Entity @table (name = "T_course" ) Span style= "color: #0000ff;" >public class Course {@Id @GeneratedValu E private Integer ID; private String Coursedesc; // course description private String Courseno; // course code // course abandons the maintenance foreign key. @ManyToMany (mappedby= "courses" ) setnew hashset@Entity @table

Assign: Simple assignment, not changing index count-(void) Setmyobject: (ID) newvalue{_myobject=NewValue;} Copy: Create an object with an index count of 1 and then release the old object-(void) Setmyobject: (ID) newvalue{if(_myobject! =newvalue) {[_myobject release]; _myobject=[newvalue Copy]; }retain: Frees the old object, assigns the value of the old object to the input object, and then increases the index count of the input object to 1-(void) Setmyobject: (ID) newvalue{if(_myobject! =