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First, the basic selector1. * Universal Element Selector, matches any element2. E tag Selector, matching all elements using e tag3.. info class selector that matches all elements of the class attribute that contain info4. #footer the ID selector to match all elements of the id attribute equal to footerTwo, multi-element combination Selector5. E,f Multi-element selector, matching all e elements or F elements, separated by commas between E and F6. E F descendant element selector, matching all f el

are descendants of the e element, separated by a space between E and F 7. E > F child element Selector, matching all e element's child elements F 8. E + F Adjacent element selector, matching all sibling elements immediately following the E element f Instance: div p {color: #f00;} #nav li {display:inline;} #nav a {font-weight:bold;} div > Strong {color: #f00;} p + P {color: #f00;} Third, CSS 2.1 property S

When learning Css3.0 selector, refer to "CSS3.0 reference manual". There is a place not to explain, so was the pit for half an hour Ah!Here to share with you, in the selector category there, there is a category is the property selector is a string to match!The form has the following types: Property name SelectorE[att]--matches the E element with the ATT attribute in the documentProperty value Selector

GCC Embedded assembly language Author: Xiaowenpeng Linjiang: Yang Xiaohua The vast majority of Linux programmers have only previously contacted the assembly language of Dos/windows, and these assembly codes are Intel-style. But in Unix and Linux systems, more or att format, the two in the syntax format is very different. Introduction to compiling basic grammarIn the ATAMP;T assembly format, the register name is prefixed with '% ', whereas in the Intel

----------------------------------------CSS Selector----------------------------------------1, combination selector:1) e>f: direct descendant selector.2) E+f: Sibling element selector, matching the sibling element F immediately following the E element.3) E~f: matches any of the sibling F elements after the E element.4) E F: descendant selector.5) E,f: Group selector.cation:+ and ~ differences, + can only match one sibling element immediately following it; ~ matches all sibling elements immediate

Original http://blog.csdn.net/bigloomy/article/details/6581754 Att assembly and 8086 assembly language, although the two are very similar, but still cannot read att Assembly according to the 8086 syntax rules, so we still need to look at the syntax rules of att assembly, when reading the kernel code, some of the Code that deals with hardware is compiled by

Introduction to att assembly language and GCC Embedded AssemblyRelease 0.1Time 04/3/30Email chforest_chang@hotmail.com1 Differences Between att and Intel's assembly language syntax1.1 case1.2 operand assignment direction1.3 prefix1.4 indirect addressing syntax1.5 suffix1.6 commands2 GCC Embedded Assembly2.1 Introduction2.2 Embedded Assembly example2.3 syntax2.3.1 Assembly statement Template2.3.2 output2.3.3

The number of attacks equals to the total number of attacks minus the number of successful defenses This question is mainly used to calculate the number of successful defenses. Add an auxiliary array pos [] to record the number of attacks at a certain point after the last query (the first attack can be defended) Every defensive hold once, the t0-1 attack, continue to judge the next t0 attack has included (that is, the attack to) Ask the point Some people say that the complexity is O (n ^ 2). The

included. The impact of code size is unpredictable, depending on the specific situation. To declare an inline function, we must use the "inline" keyword in the function declaration.Now we are at a point where we guess exactly what inline assembly is. It is just an assembly program written as an inline function. They are convenient, fast, and extremely useful in system programming. We mainly focus on the basic formats and usage of (GCC) inline assembler functions. To declare inline assembler fun

1. In intel format, most of them use upper-case letters (both in lower case) and lower-case letters in att format. 2. In att format, Register names must be prefixed with "%", which is not required in intel. 3. The original operation of the command is different from that of the destination operand. For example, if the eax value is passed into the EBX command, in Intel, the target is in the front, and the