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Introduction to iosGCD 2

) touchesBegan :( NSSet *) touches withEvent :( UIEvent *) event { // [Self test1]; // [Self test2]; // [Self test3]; [Self test4]; } // Add tasks to the serial queue of the synchronization function, and no new threads will be opened. -(Void) test1 { // 1. Create the Data Type of the serial queue _ t _ ref C Language // Parameter 1: queue name // Parameter 2: the queue attribute is generally NULL, indicating the creation of a serial queue, // Specify DISPATCH_QUEUE_SERIAL in parameter 2 to

Recommended for pure CSS3 text effects

I have studied several text effects of pure css, CSS text striped shadow animation and responsive cream three-dimensional character effect. Today I will study several text effects, it mainly utilizes several unique features of the text-shadow and webkit Kernels to achieve the effect. Click here for online research, and click here for download and favorites.Effect 1-Effect Our html file looks like this. In order to better demonstrate the effect, we have added the Editable attribute. In the css

18-style CSS techniques that have been added to favorites for a long time

default values may be different in different browsers. If there is a conflict, You can first define that the margin and padding values of all elements are 0 at the beginning of the style sheet, as shown in the following code:*{Margin: 0;Padding: 0;}6. Do not need to repeatedly define the value that can be inherited In CSS, the child element automatically inherits the attribute values of the parent element, such as color and font. defined in the parent element, the child element can be inherite

About transition and animation in css3, css3transition

About transition and animation in css3, css3transition ** After a long project, the transition and animation css3 attributes are often used in actual projects. As follows: 1: first introduce transition: A. This is often the case in projects. For example, when a button is moved in, the background color and font color of the button are changed. In this case, we usually do this: .btn{width: 80px;height: 25px;border: 1px solid #333;color:#

Detailed description of the JavaScript Date object, javascriptdate

/1/01 08:00:00 '). Example: Dt. getFullYear (); // => 2014: Year dt. getMonth (); // => 11: month; actual month (month starts from 0) dt. getDate (); // => 25: dt. getHours (); // => 15: dt. getMinutes (); // => 30: dt. getSeconds (); // => 40: seconds dt. getMilliseconds (); // => 333: millisecond dt. getDay (); // => 4: the value of the day of the week dt. getTime (); // => 1419492640333: returns the millisecond value between the Date object and '20

CSS Code refactoring

registration: Regsiter Status: Status vote: Vote partners: Partner Navigation: Nav Main: Mainnav sub-navigation: Subnav Top navigation: Topnav side navigation: Sidebar left navigation: Leftsidebar Right Navigation: Rightsidebar Menu: Menus submenu: Submen U title: Title Abstract: summary 2. Extracting Repeating stylesThis method is easy to understand, simply to extract the same style into a separate class to reference, so that not only can simplify the size of the CSS file, but also

Linux Learning Note 12: Process Management

time and total time consumed%MEM: Percentage of total memory consumed and system memoryNote: Use the Pstree command to view information for all processes in a tree-like formThe third kind, with pgrep command:Use the Pgrep command to view the PID of all processes initiated by a service, such as:Pgrep httpd//view PID of all processes initiated by httpdFourth: Real-time view of process informationFormat: TopParameters (Interactive parameters):D Specify the time interval for refreshC Displays the e

Linux Command summary: SED

\) able/\1rs loveable is replaced with lovers Save Search characters to replace other characters, such as s/love/****/love this into **love**\\> matches the end of a word, such as/love\>/matches a line containing a word ending in loveX\{m\} repeats characters x,m times, such as/0{5\}/matches a row containing 5 0X\{m,\} repeat character x, at least m times, such as/0\{5,\}/matches at least 5 rows of 0X\{m,n\} repeats the character x, at least m times, not more than n times, such as/0\{5,10\}/matc

A list in Python

different.2) No fixed length, can be dynamically increased or decreased.3) The data item in the list can be any data type,4) More than one list can be a list via the + link. Here's an example:>>> L1 = [1,2,3,4,5]>>> L2 = [' A ', ' B ', ' C ']>>> L3 = L1 + L2>>> Print L3[1, 2, 3, 4, 5, ' A ', ' B ', ' C ']Note: The list can be + and * operations, but * can only be a single list multiplied by an integer, which is an extension to itself.Part I: Basic operations on a list1. Accessing the values in

The most complete Python 3 type conversion guide in history

Ast.literal_eval for conversion does not have the problem of using JSON for conversion, and there is no security issue using Eval for conversion, so Ast.literal_eval is recommended. 1234567 Import ast User_info = "{' name ': ' John ', ' gender ': ' Male ', ' Age ':"} "user_dict = ast.literal_eval (user _info) print (user_dict) # {' Name ': ' John ', ' gender ': ' Male ', ' age ':-} List--DictMap 2 lists to a dictionary by Zip:

Eclipse plug-in development learning note "6"---add editor

(Iworkbenchgraphicconstants.img_dtool_new_fastview);Return "111";Add the following code to the Viewlist:List.addmouselistener (new MouseListener () {@Override Public void MouseDoubleClick (MouseEvent e) {Ieditorinput input = null;String id = NULL;Switch (List.getselection () [0]) { Case "111":input = INPUT1;id = "Myfirstplugin.editors.Editor1";break; Case "222":input = Input2;id = "Myfirstplugin.editors.Editor2";break; Case "333":input = INPUT3;id =

Memory strip DDR and DDR2 differential Interpretation _ Hardware Maintenance

Intel is the Intel 865, 875 series, and AMD is the Nvidia Nforce2 series. Dual-channel memory technology is a low-cost, high-performance solution to the problem of CPU bus bandwidth and memory bandwidth. Now that the CPU's FSB (front bus frequency) is getting higher, Intel Pentium 4 has a much higher demand for memory bandwidth than AMD Athlon XP. The Intel Pentium 4 processor and North Bridge chip data transfer using QDR (Quad data Rate, four data transmission) technology, the FSB is 4 times t

Imitation Taobao Product detail page Add to cart effect

Imitation Taobao Product detail page Add to cart effect GOODS.DWT page Copy CodeI also posted the style for your reference. cartsure{Position:absolute;left:0;top:545px;width:405px;height:90px;z-index:999;Background:url (images/cartsure_bg.gif) 0 0 no-repeat;font-size:12px;} . mesgcon{Float:left;Background:url (images/mesg.png) no-repeat 18px 9px;Color: #666;line-height:21px;padding:0 0 0 100px;width:320px;} . Mesgcon h3{Float:left;width:320px;Color: #

Common CSS Tips for code snippet collation

Html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite, Code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li, Fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure, figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{margin:0;padding:0; border:0;font-size:100%;font:inherit;vertical-align:baseline;out

Pure CSS Implementation triangles

In the design of the interface, usually need a triangle icon, the general practice is to use the picture, in fact, you can also use CSS to achieve. As follows: Upward triangleTriangle to the rightDownward triangleTriangle to the leftThe CSS that implements them are: 1 .top { 2 width : 0 ; 3 height : 0 ; 4 Border-color : transparent transparent #333 transparent ; 5 Border-width : 6px ; 6 Border-style : solid ; 7 } 1 .right { 2

Refactoring: CSS is also object-oriented

H6, table P, table UL, table ol, table dl{padding:0;} /* ====== Elements ====== */ Img{display:block;} Em{font-style:italic;} Strong{font-weight:bold;} hr{border:5px solid #e2e2e2; Border-width: 0 0 5px 0; margin:20px 10px 10px 10px;} Code{color: #0B8C8F;} /* ====== headings ====== */ /* H1-.H6 classes should is used to maintain the semantically appropriate heading Levels-not for use on Non-headings */ H1,. H1{font-size:196%; font-weight:normal; font-style:normal; c

Dual-channel memory describes what is dual-channel memory?

Nforce2 series. The Dual-channel memory technology is a low-cost, High-performance solution that solves the problem of CPU bus bandwidth and memory bandwidth. Now that the CPU's FSB (front bus frequency) is getting higher, Intel Pentium 4 has a much higher demand for memory bandwidth than AMD Athlon XP. The Intel Pentium 4 processor and North Bridge chip data transfer using QDR (Quad data Rate, four data transmission) technology, the FSB is 4 times times the FSB. The FSB for intel® Pentium 4

Replacing a line in a file with C language _c language

The contents of the file are stored as follows: One 1122 0 1122 * * 0 0 222 0 222 * * 0 0 333 0 333 * * 0 0 By using the following several functions,,,,, fopen fprintf fscanf fseek ftell . The specific function prototype looks like this: File*fopen (const char*filename,const char *mode); int fprintf (file*stream,

The difference between less and sass

ref attribute of the link label. You need to end with "/less" to work. Immediately after the link tag, include the script tag. If you are using HTML5 syntax, then you can remove type= "text/css" and Type= "text/javascript" sentences. There is also a server-side less. The easiest way to use less on the server side is to use node Package Manager (NPM). Variable (Variables) If you are a developer, the variable is your best friend. When you need to use the same information more than once (such a

A long collection of CSS 18-like skills _ experience Exchange

,background-color. However, the default values for different browsers may be different. If you are afraid of conflict, you can define the margin and padding values for all elements at the beginning of the stylesheet as 0, like this: *{ margin:0; padding:0; } Six. You do not need to repeat the definition of inheritable values In CSS, child elements automatically inherit the attribute values of the parent element, such as color, font, and so on, that are already defined in the parent element an

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