code complete 2nd edition

As the future of the code says, in order to make full use of multi-core, concurrency will become the future trend of development, for concurrent programming support, Erlang is indeed the choice, Erlang is still relatively small in China, the classic books are relatively few, and finally chose the Erlang programming 2nd edition As my first Erlang starter book. Er

));Fbinin.read ((char*) (age), sizeof (int));Fbinin.close ();The following fbin will support both read and write support:FStream fbin (filename, ios::binary | ios::out | ios::in);Summary leackage Check:#include It: The random access pattern can be implemented through file pointers (including overwriting any part of the file without affecting other data). If the file pointer is moved to a location that exceeds the current length of the file, the file is automatically expanded to meet the length r

Entity Framework 6 Recipes 2nd Edition (10-5), entityrecipes 10-5. Use custom functions in the storage model Problem You want to use udfs in the model instead of stored procedures. Solution Assume that our database has a member (members) and a messages data table, as shown in Figure 10-4: Figure 10-4.A simple database of members and their messages In this case, we may not allow entry-level programmers to

Entity Framework 6 Recipes 2nd Edition (9-5) Translation-> delete a disconnected Entity, entityrecipes 9-5. delete a disconnected entity Problem We need to delete the object retrieved from WCF. Solution Let's assume that we have the payment and Bill model of the entity as shown in Figure 9-5. Figure 9-5.OnePayment and Bill Model Our model shows the relationship between payment records and bills. In the app

eitherProject Manager Jill Mastersonor Supervisor Steve JohnsonAssociate:nancy JonesAssociate:stacy RutgersHow does it work?In the Getsupervisor () function as shown in listing 11-7, we need to do three navigation for the Manager attribute. The first time from Teammember to Teamlead, the second time from Teamlead, Navigate to Projectmanager, and the last time you navigate from Projectmanager to supervisor. In Listing 11-7, we also define the Getprojectmanager () function, so we can use this fun

never be able to leave the current link.What about those people who use keyboards only?Fortunately, the OnClick event handler is smarter than we thought. Although its name "onclick" gives the impression that it is only associated with a mouse click action, it is not true: in almost all browsers, the action of tabbing to a link and pressing ENTER will also trigger the OnClick event.It is best not to use the OnKeyPress event handler function. The OnClick event handler function has been able to me

Entity Framework 6 Recipes 2nd Edition (12-3), entityrecipes 12-3. database connection logs Problem You want to record logs for each connection and disconnection from the database Solution EF exposes a StateChange event for the DbContext connection. We need to handle this event and record logs for each connection and disconnection with the database. Suppose our model is shown in Figure 12-3. in the Listing

Entity Framework 6 Recipes 2nd Edition (11-2), entityrecipes 11-2. Use the "model definition" function to filter entity sets Problem You want to create a "model definition" function to filter an object set. Solution Assume that we have a Customer and bill Invoice model, as shown in Figure 11-2. Figure 11-2.Customer and Invoice in a model We want to create a "model definition" function to obtain the invoice

Doe // Script Error　(2) All variables that do not have a direct assignment defined are automatically declared as having global scopefunction dosomething () { var Name= "Zhang San"; NewName= "John Doe"; // Zhang San // John Doe // Script ErrorThe variable blogname has a global scope, and AuthorName cannot be accessed outside the function.(3) All Window object properties have global scopeIn general, the built-in properties of the Window object have global scope, such as Window.name, Win

, Revenue: $189.98Joan Hills, Total Reservations:2, Revenue: $189.98Using LINQ ...Alex Stevens, Total Reservations:2, Revenue: $189.98Joan Hills, Total Reservations:2, Revenue: $189.98How does it work?In Listing 11-9, in the visitorsummary () function definition, we grouped by the entity's navigation property visitor, we used the ESQL count () function to calculate the number of bookings per visitor, and sum () to total the rent paid by each visitor.In this function, we organize the results into

delegate object @interface nsobject ( Span class= "hljs-variable" >nsnetservicebrowserdelegatemethods ) - (void) Netservicebrowserwillsearch: (nsnetservicebrowser *) browser;- Netservicebrowserdidstopsearch: (NSNetServiceBrowser *) browser;- (void) Netservicebrowser: ( Span class= "hljs-variable" >nsnetservicebrowser *) browser Didremoveservice: (nsnetservice *) service morecoming: (bool ) morecoming; @end By declaring the category as NSObject, Nsnetservicebrowser can send o

to the height of the right sub-tree. The key values can be traversed from small to large using the middle order traversal (with iterators).Refer to Cplusplus for a more detailed description of the set container.The specific code is as follows:1#include 2#include Set>3 using namespacestd;4 5 intMain ()6 {7 intMyints[] = { $, at, the, the, - };8 Setint> MySet (myints, myints +5);//Use the ' Set ' member function ' Insert ' is also OK.9 Ten

- (void//必须实现@optional- (void)slideHome;- (void)catchBall;- (void)throwBall;@required- (void//必须实现@end // BaseballPlayerNote :The informal agreement in cocoa was gradually replaced by a formal agreement with the @optional approach.13.4 Delegate MethodsDelegate: An object specifies the design pattern for another object to handle certain tasks, and the delegate adheres to the ProtocolThe delegate method for the Nsnetservicebrowser class:-(iddelegate;//返回当前的委托对象-(void)setDelegate:(iddelegate;//设置委

syntax does not allow a variable name to contain spaces or punctuation (the dollar sign "$" exception)JavaScript variable names are allowed to contain letters, numbers, dollar signs, and underscores (but the first character is not allowed to be a number)Hump format naming:Remove Middle white space (underline), followed by each new word start with uppercase letters Script > var ="happy"; Script >Usually the hump format is the preferred format for function name, method name, and object prope

JavaScript code must be executed through the html/xhtml document, and the first way is to put the JS code between the to put the , allowing the browser to load the page fasterPS: Browser page load order: Please read this articleJS Note: 1,///2,/* 3, JS can be used JS allows programmers to directly assign values to variables without prior declaration, the most efficient declaration and assignment practices:

to the value of the attribute node. After making changes to the document through SetAttribute, you will still see the value of the property before the change through the browser's view source option to view the document's source code, that is, the changes made by setattribute are not reflected in the source code of the document itself. This "duplicity" phenomenon stems from the DOM's working mode: loading

"People rarely read the full CSS specification first, and these specifications can send anyone to sleep." ” "One of the best ways to learn CSS is to start using it directly. ” "First saw some great results from the blog, so look at the source code to see how they are implemented, and then on their own personal site is a bold attempt." ” First, from the beginning should pay attention to the basic problems, develop good habits:1. Good docum

effects;the value of the macro:Functions (such as GETCHAR) are defined as macros to avoid the overhead of calling functions, and #undef names can be used to cancel macro definitions; The formal parameter in the name cannot be replaced with a quoted string and, if necessary, precede the parameter with # in the replacement text;preprocessing operator # #: If the replacement text in the shape participates in it adjacent, then the parameter is replaced by the actual parameter # #及其前后空白符会被删除, the re

combined; no parentheses: int　　*comp (void *, void *) indicates that comp is a function that returns an int type pointer; 5.12 Complex declaration The C language often receives criticism because of the syntax of declarations (especially function pointers); C's syntax tries to make the declaration and use consistent; Because C's declaration cannot be read from left to right and uses too many parentheses, it is confusing when the situation is more complex, such as 5.11 cases; complex declarations

be a name, while the exposed property is another name.@property(copy)NSString *name;@synthesize name = appellation;// 编译器将创建-setName:和-name方法，但在实现代码中用的是appellation实例变量。Note :Direct access to instance variables: self.nameTo assign a value using an access method:[self setName:@"Car"];11.22 Read-only propertiesFor values that can only be read, cannot be changed:@property(readonly)float shoeSize;Note : Only one getter method is generated and no setter method is generated11.23 Hands on your own@dyna