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processed by the compiler:Sel sel = Sel_get_uid ("Setvalue:forkey:");IMP method = Objc_msg_lookup (Site->isa,sel);Method (site, SEL, @ "sitename", @ "name");First, we introduce two basic concepts:(1) SEL data type: It is the environment parameter of the method that the compiler runs in Objective-c.(2) IMP data type: He's actually a function pointer to the compiler's internal implementation. When the Objective-c compiler deals with implementing a meth

), as supmin.An itemsets with a support degree greater than or equal to Supmin is called a frequent itemsets, or a frequent set, or a non-frequent set.Usually K-itemsets, if satisfied with Supmin, are called K-frequent sets, are recorded as LK.5. Define 5 Association RulesAssociation Rules (Association rule) can be represented as one implication:Among them:.For example: R: Milk → Bread6. Define the support level for 6 Association rulesThe support level of rule r is the ratio of the number of tra

EJB concepts into EJB products. What is EJB's concept of Beans,beans? That is to have a place to hold her, so that she can make it, is to have a container. EJB must exist in the EJB container, but the container is very powerful! She will first wrap your beans. EJB's client program actually never deals directly with the EJB you write, and they are related through the Home/remote interface. It is responsible for all of your bean's eating and drinking,

(originalSize.height,originalSize.width); CGContextRefcontext=CGBitmapContextCreate(NULL,rotatedSize.width,rotatedSize.height,CGImageGetBitsPerComponent(currentCGImage),CGImageGetBitsPerPixel(currentCGImage)*rotatedSize.width,CGImageGetColorSpace(currentCGImage),CGImageGetBitmapInfo(currentCGImage));CGContextTranslateCTM(context,rotatedSize.width,0.0f);CGContextRotateCTM(context,M_PI_2);CGContextDrawImage(context,(CGRect){.origin=CGPointZero,.size=originalSize},currentCGImage);CGImageRefnewCGIma

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

the output of the following code? int main(){ int i = 6; if( ((++i A: 8. This question mainly deals with the short-circuit evaluation of |. Short-circuit evaluation: For (condition 1 condition 2), if "condition 1" is false, the expression of "condition 2" is ignored. For condition 1 | condition 2, if condition 1 is true, the expression of condition 2 is ignored. Q: sizeof can be followed by an expression. The code below shows why I ++ is inv

body is called a binding. Bindings are divided into early binding and late binding. Early binding: There is no way to select the default binding for the process. Late binding: The runtime binds based on the type of the object. Also known as dynamic binding or runtime binding. In addition to the static method and the final method in Java (the private method belongs to the final method), all other methods are late-bound.8.2.2 Produce the right behaviorAll methods in the java ar

Peter belanger– He's the photographer who flipped the picture of your imaginary Apple product. As Peter of San Francisco's top product image designer, he also owns EBay, Nike, Pixer and Square customers.Let's follow the lens and see how the foreigner deals with electronic products like Apple phones. How to play light, later how to make the effect and so on.650) this.width=650, "class=" full AlignCenter "title=" product marketing to take a good electro

JavaScript development. On the one hand, JavaScript often deals with the UI and is difficult to test. On the other hand, it is because of code coupling and no fixed interface. There is no way to test it. With the module, you can easily perform the test. See introduction to the JavaScript unit test framework SummaryThis article discusses the modular Development Method in Small and Medium-sized JavaScript projects. Therefore, the AMD specification is n

The DML, DDL, and DCL statements we usually call are SQL * plus statements. After they are executed, they can be stored in a memory area called SQL buffer, in addition, only one SQL statement can be saved recently. We can modify the SQL statement stored in SQL buffer and execute it again. sqlplus generally deals with databases. Frequently used: Sqlplus username/password for example: normal user login sqlplus scott/tiger Sqlplus username/password @ net

be placed as high as possible. 9) The left floating element must be as much as possible to the left, and the right floating element must be as much as possible to the right. The higher the position, the farther to the right or to the left. Practical Behavior Insert the left floating image in Section 1: In this way, the floating element exceeds the bottom of the left element, but it is not obvious. The floating rule discussed earlier only deals with