ATT, attribute Protocol, protocol for discovering, reading, and writing to-end devices (for BLE devices) 1 Introduction
ATT allows a device to provide a set of attributes with associated values as a serverLet the device as a client to discover, read, write these attributes, and the server can actively notify the client
The ATT defines two roles: server and Client
1. Example source code2. Example Results3. Description[Att*=val], if the element is represented by an att with a character specified with Val, the element uses this styleCSS3 [Att*=val] Selector
[Att $ = val] selector and css3attval selector of CSS3
1. instance source code
2. instance results
3. Description
[Att $ = val]. If the end character of the attribute value represented by att is the character specified by val, this style is used for this element.
Assembly languages depend on the architecture. In Linux, the compiled assembly by GCC is an ATT syntax assembly by default. This article mainly introduces ATT Assembly: operand length, immediate number representation method, register reference, operand sequence, symbol constant, memory Reference.
1. The length of the operand
The length of the operand is expressed by the symbol after the instruction in B
immediate suffix are labeled "H" and "B" respectively, while at/T, hexadecimal immediately preceded by "0x", table 2.2 gives several corresponding examples.Table 2.2 The difference between Intel and the-t prefix
Intel syntax
AT/t syntax
MOV eax,8
MOVL $8,%eax
MOV EBX,0FFFFH
MOVL $0XFFFF,%EBX
int 80h
int $0x80
2. Direction of the operandIntel is in the opposite direction of the/t operand. In Intel syntax, t
A new att assembly problem (coming soon)-General Linux technology-Linux programming and kernel information. For more information, see the following. This is what I wrote. I want to use the bubble algorithm to arrange a group of data and then output the data. but I always feel a bit problematic. I hope the experts can help me ......
. Section. data
Output:
. Asciz "ni yao de shu shi % d \ n"
Msg:
. Long 55555555,33333, 53,56, 25, 52, 56,631,56
1 each element has one or more attributes that are used to give additional information about the element or its contents, such as: In an IMG element, SRC is the attribute of the element, and the address that marks the image2 main DOM methods for operating characteristicsGetAttribute methodSetAttribute methodRemoveAttribute method3 jquery uses the attr () method to get and set element properties, attr is an abbreviation for attribute (attribute)4 Expression of attr ()attr (incoming property name)
[Att * = val] selector and css3attval selector of CSS3
1. instance source code
2. instance results
3. Description
[Att * = val]. If the attribute value represented by att contains characters specified by val, this style is used for this element.
[Att ^ = val] selector and css3attval selector of CSS3
1. instance source code
2. instance results
3. Description
[Att ^ = val]. If the attribute value represented by att starts with a character specified by val, this style is used for this element.
1. Example source code2. Example Results3. Description[Att$=val], if the element is represented by an ATT, the end character of the property value of the property is specified with a val character, then the element uses this styleCSS3 [Att$=val] Selector
There are three ways in which jquery offers usData ()Att ()Prop ()To set and get the properties of an object. But the design of these three methods does not repeat the useless design, then the three of their distinction is where it.Demo attr () Method: is the integration of the getattribute () and setattribute () methods in JSUsage is the most routine.$ (' div '). attr ({age:30,address: "Tianjin"});var = $ (' div '). attr ("Age");$ (' div '). R
Make class extension simpler-extension methods and extension methods
1. What is an extension method?
An extension method is a method that can be used to extend the method members of a defined type.
Before an extension method is cr
Summary of PHP compression and archive extensions
To open the PHP user manual, we can see the following library of functions for processing compressed files,
Bzip2,lzf,phar,rar,zip,zlib
So what are the actual application scenarios for each of these, and we'll pick one up next.
BZIP2:
The official introduction is this:
The BZIP2 function is used to transparently read and write bzip2 (. bz2) Compressed files.
Self-Understanding as follows:
This library is a file that is processed with a. bz2
In Swift, there is a structure extension, similar to the category category in OC, which is ideal for managing codeAt the same time, common access modifiers have public, internal, private, and for these three access modifiers, the impact on extension is differentIn this article, I will describe a total of four scenarios for extension under the same file and differ
Today Bo Master has an app extension needs, encountered some difficulties, here and we share, hope to progress together.General overviewExtensions (Extension) are a very large feature point for IOS 8 and OSX 10.10, and developers can provide some additional functionality to system-specific services by providing our extended access points (Extension point). For IO
Busybox/src/include/platform.h
/* Fast_func is a qualifier which (possibly) makes function call faster
* and/or smaller by using modified ABI. It is usually only needed
* on non-static, busybox internal functions. Recent versions of GCC
*
This is a created
article in which the information may have evolved or changed.
such as XML:
The flag of item 3 obtained after parsing is the default value of FALSE, if you want to modify to true, you need to add the
In the Microsoft Standard LINQ, there is no distinctby extension and foreach extension, but in peacetime use of these two features are often used in the work, in the sense that Microsoft should include these two extensions in LINQ, but in fact why not? This article I would like to say that their understanding of these two extensions!
About Distinctby Extensions
As the name suggests, the Distinctby
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