assign ringtone

Property1 , #import: Tells the preprocessor to include the contents of the header file in this file, and the import in OC guarantees that the same file will only be included once;2 , @interface: Declaring a class, @end: Closing a statement;3 , @property: Sets the property compiler for member variables to automatically generate Setter/getter methods;4 , @dynamic: Tell the keyword compiler to have our own implementation access method;5 , @synthesize: The compiler implements itself;6 , readonly: Re

Original address: http://rd.189works.com/article-36809-1.html The following text: When writing a program, for the variable to be defined into the habit of adding retain attributes, but to what effect it has been not very clear, today did a demo, finally understand their meaning. Like I'm going to define string var: NSString *var; When declaring property, the @property (nonamtic,assign) NSString *var; Declare the attribute as

Main (){Char s [30];Strcpy (S, "Good news! ");/* Assign a string to the array */...}When the above program encounters the char s [30] statement during compilation, the Compilation Program will stay somewhere in the memoryReturns the region of 30 consecutive bytes and assigns the address of the first byte to S. When strcpy (strcpy isFor functions of Turbo c2.0), first create a "good news! /0 "string.Where/0 indicates that the string is terminated, the

Nonatomic: Non-atomic access, no lock when assigning values to attributes, multi-thread concurrent access will improve performance. If this attribute is not added, both access methods are atomic transaction access by default. (Atomic is a thread protection technology used by objc. Basically, it is used to prevent reading by another thread when the write is not completed, resulting in data errors. This mechanism consumes system resources. Therefore, nonatomic is a good choice if multi-thread comm

C # compile a third-party control to assign values to the form control with one click, , Cause When writing a program, we often write the code above to display the query result to a form. How can we do this? Assign values to one row. This Code is the most boring and error-prone. Have you found that the above Code is doing the same thing-assigning values. If similar code is written more than three times, y

Nonatomic: Non-atomic access, no lock when assigning values to attributes, multi-thread concurrent access will improve performance. If this attribute is not added, both access methods are atomic transaction access by default. (Atomic is a thread protection technology used by objc. Basically, it is used to prevent reading by another thread when the write is not completed, resulting in data errors. This mechanism consumes system resources. Therefore, nonatomic is a good choice for small devices su

Http://www.cnblogs.com/martin1009/archive/2012/06/18/2553184.html Oneretain, copy, assign difference1. Suppose you allocate a chunk of memory with malloc and assign it to pointer a, and then you want pointer b to share that memory, so you assign a to (assign) B. At this point A and B points to the same memory, ask when

Bash string processing (compared with Java)-3. assign values to the (string) Variable In JavaSimple assignmentS = "Hello ";Assignment of multiple variables at a timeS1 = s2 = "Same ";Assign a value to an integer (convert an integer to a string)Int I = 1234;S = String. valueOf (I );Or s = "" + I;In BashValue assignment (=)The value assignment operation is in the form of VAR = STRINGRemember: there cannot be

In some special applications, we need to assign values to the private fields of the class or struct object instance. For example, we need to change the value of a read-only property, this article focuses on how to implement such a function. In particular, to assign values to private fields of struct, we need to use an undisclosed keyword _ makeref. First, let's look at the situation of the class. c

How do roles in vsts assign permissions? There will certainly be some confusion in the face of vsts. I am no exception. Since I learned from architects, developers, and testers, I have been eager to know how PM works with various roles. I posted a post on csdn, And no one replied after a whole day. Post content:----------------------------------------------Vsts provides collaboration between project management, architects, designers, developers, tes

Main (){Char s [30];Strcpy (S, "Good news! ");/* Assign a string to the array */...}When the above program encounters the char s [30] statement during compilation, the Compilation Program will stay somewhere in the memoryReturns the region of 30 consecutive bytes and assigns the address of the first byte to S. When strcpy (strcpy isFor functions of Turbo c2.0), first create a "good news! /0 "string.Where/0 indicates that the string is terminated, the

1,release will call Dealloc destroy this object. If retain, you need to release two times. It is usually necessary to assign a parameter to a member variable in method retain. The Nsarray object retain the object in any array (retain value plus one). When Nsarray is unloaded (Dealloc), all objects in the array are freed once (the retain value is reduced by one). Not only Nsarray, but any collection class (Collection Classes) performs a similar operat

You can rearrange and Change Office toolbar buttons, menus, and menu commands by using the mouse, and you can use the keyboard to access the Rearrange Commands dialog box to rearrange and change operations. Tasks that can be accomplished using the keyboard are identified as "accessible via keyboard." Hyperlinks hyperlink: Colored and underlined text or graphics that you click to move to a file, a location in a file, a Web page on the World Wide Web, or a Web page on an Intranet. Hyperlinks can

Everyone can go to my githup download https://github.com/simplyou/YJ-UIIView-/tree/masterWhen setting the size of the pro have no feeling very painful ah, here provides a set of classification, directly into the project, in the PCH contains the header file can solve your egg pain problem;/***********************. h file ********************************Uiview+yj.hCreated by lightning on 14-6-8.Copyright (c) 2014 Wen Yanjun. All rights reserved.This classification provides a quick way to solve the

Assign vs Weak, __block vs __weakWord 364 Read the comments 0 likes 0 In Objective-c, global variables in a class are often declared in the following way.@property(nonatomic（1）,strong（2）)UIImageView *imageView;Of these, 1 and 2 are some of the property declarations for this variable. Has the following severalStrongWeakAssignStrong and weak are keywords that were introduced after arc, strong similar to retain, referencing the calculation +1,weak inst

In the cycle of smarty, how does one perform assign? this is the code PHPcode $ I = 0; $ db- gt; Query ( quot; brand_list quot;, quot; in smarty; how can select * from 'Category 'wh perform assign in the cycle of smarty? This is the code in smarty. PHP code $ I = 0; $ db-> Query ("brand_list", "select * from 'category' where 'pid '= '2' order by id "); // There are 4 results in total while ($ arra

What is a circular referenceSimply put, a circular reference is: A retains B, B retains a, and neither a nor B can be released.Why ID is assign and not retainIt can be guessed from the title of the article that the reason ID is assign rather than retain is related to your circular reference. The reason is true.The ID is assign rather than retain, because retain m

In the cycle of smarty, how does one perform assign? this is the code PHPcode $ i0 in smarty; $ db- gt; Query ( quot; brand_list quot;, quot; select * from 'Category 'Where 'pid '2orderbyid quot;); there are 4 results in total while ($ array $ How to perform assign in the cycle in smarty This is the code in smarty. PHP code $ I = 0; $ db-> Query ("brand_list", "select * from 'category' where 'pid

In the cycle of smarty, how does one perform assign? this is the code PHPcode $ i0 in smarty; $ db- gt; Query ( quot; brand_list quot;, quot; select * from 'Category 'Where 'pid '2orderbyid quot;); there are 4 results in total while ($ How does array perform assign in the loop in smarty? This is the code in smarty. PHP code $ I = 0; $ db-> Query ("brand_list", "select * from 'category' where 'pid

a name that doesn't match, the setter won't get called. The above "outletname" is defined as anything in the source code that is closely related to the iboutlet keyword. If iboutlet is in @ property, no matter what the instance variable name is, it doesn't matter because the setter has been created.If the setter does not exist for some reason, an exception is reported on the connection to the outlet interface. If the iboutlet is on the instance variable and there is a s