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Using ASP to generate a picture color check code 49 lines of code, three filesASP File: code.aspData file: Body. Fix, Head.fixDownload: Download packaged filesUsage: Option ExplicitResponse.buffer=trueNumcodeFunction Numcode ()Response.Expires =-1Response.AddHeader "Pragma", "No-cache"Response.AddHeader "Cache-ctrol", "No-cache"Dim znum,i,jDim ados,ados1Randomize TimerZnum = CInt (8999*rnd+1000)Session ("GetCode") = ZnumDim zimg (4), NSTRNstr=cstr (Znum)For I=0 to 3Zimg (i) =cint (Mid (nstr,i

css| Web page if box width and height are known: Font-family:arial, Helvetica, Sans-serif; font-size:12px; margin:0; Padding:0;/*--for opera--*/ } #layout { position:absolute;/*--Absolute Positioning--*/ top:50%; left:50%; Margin-top: Half of -240px;/*--div height--*/ Margin-left: Half of -320px;/*--div width--*/ width:640px; height:480px; Background: #ECECEC; } pre{ padding:15px; } Explanation:If you set the midpoint of the screen to the coordinate origin (0 0), the positive direction of

Meta Tags for mobile platforms ----- Amazing effects, platform meta tags ----- I am not familiar with the meta tag in the web layout of the desktop platform. It will always be inside the head element. Do you have special feelings for SEO friends about meta, today we will talk about the meta tag of the mobile platform. What are the magical effects of the meta tag on the mobile platform? 1. Meta viewport Speaking of the meta tag of the mobile platform, you have to talk about the viewport. What is

webapp is usually 320 in width under the vertical screen. What is the effect of our 320 page on the iphone? Some people may think that the iPhone is not 320 in width. It should be full screen. What is the truth? Let's take a look at the following display on the iPhone:The Code is as follows:AppUETherefore, we must change the viewport so that we can set the follo

For the desktop platform Web layout Everyone is familiar with meta tags, it is always located inside the head element, to do SEO friends must have a special affection for meta, today we say mobile platform META tag, on the mobile platform META tag What are the magical effects?1. Meta-ViewportWhen it comes to mobile platform meta tags, you have to say viewport, so what is viewport?Viewport is the viewable area, for desktop browsers, viewport refers to the area that is used to look at the page aft

Before iOS6, screen fit general use AutoSize to set the dimension relationship of the view to the parent view Defect: (Insufficient autosizing layout) 1. Cannot set the relationship between views and views 2. You cannot set the size to zoom in, the maximum value is reduced, the minimum value After iOS6, use automatic layout. AutoLayout IOS8 size classes (more abstract, square) In addition, some of the major device parameters a

See a lot of netizens do not understand the difference between DP, SP and PX: Now introduce the DP and SP. DP is also dip. This is basically similar to SP. You can use a DP or SP if you set properties that represent length, height, and so on. However, if you set the font, you need to use the SP. The DP is not density-independent, and the SP is not related to scale, except for density. If the screen density is 160, then the DP and SP and PX are the same. 1DP=1SP=1PX, but if you use PX as the unit

, PX, in, PT, mm) There are a lot of people who don't understand the difference between DP, SP, and PX: Now let's introduce the DP and SP. DP is also dip. This is basically similar to SP. You can use a DP or SP if you set properties that represent length, height, and so on. However, if you set the font, you need to use the SP. The DP is not density-independent, and the SP is not related to scale, except for density. If the screen density is 160, then the DP and SP and PX are the same. 1DP=1SP=1P

/*Uikeyboardwillshownotification The data under the noticeBaidu{Uikeyboardanimationcurveuserinfokey = 7;Uikeyboardanimationdurationuserinfokey = "0.25";Uikeyboardboundsuserinfokey = "Nsrect: {{0, 0}, {320, 44}}";Uikeyboardcenterbeginuserinfokey = "Nspoint: {160, 590}";Uikeyboardcenterenduserinfokey = "Nspoint: {160, 546}";Uikeyboardframebeginuserinfokey = "Nsrect: {{0, 568}, {320, 44}}";Uikeyboardframeendus

Screen density Ratio (relative) Physical Size (inches) Pixel size The usual resolution ldpi 120 3 0.75 1 120 mdpi 160 4 1 1 160 320*480 hdpi 240 6 1.5 1 240 480*800 xhdpi 320 8 2 1

1. px (pixels) pixels-is a pixel, which is the actual pixel unit on the screen. Dip or dp (device independent pixels) device independent pixels, related to the device screen. Sp (scaled pixels-best for text size): similar to dp, it mainly deals with the font size. Dpi (dot per inch): screen pixel density, how many pixels per inch There is a member with the same name in the android api. The method is as follows: 2. dpi indicates the pixel density of the screen. That is, the number of pixels on t

(adjustFontSize + 4 );} Else {(TextView) v). setTextSize (adjustFontSize );}}}}// Obtain the font sizePublic static int adjustFontSize (int screenWidth, int screenHeight ){ScreenWidth = screenWidth> screenHeight? ScreenWidth: screenHeight;/*** 1. Obtain the view width in onsizechanged of the view. The default width is 320. Therefore, a scaling ratio is calculated.Rate = (float) w/320 w is the actual width2

Today, when collecting images from the Momo website, the resolution of the images will be changed to 320*480, and the original images contain pixel information. For example, clear cottage (320*480) Wallpaper So what should I do if I want to leave the "Clear cottage Wallpaper? First, we should immediately think that we should first find the string and remove it. Well, first of all, I thought so too. I define

This article mainly introduces the application details of meta tags in mobile platform development. For more information about meta tags, see, it will always be inside the head element. It must have special feelings for SEO friends for meta. Today we will talk about the meta tag of the mobile platform, what are the magical effects of meta tags on mobile platforms? 1. Meta viewport Speaking of the meta tag of the mobile platform, you have to talk about the viewport. What is the viewport?Viewport

In "QT Quick Introduction" We mentioned that QML syntax is similar to JSON, please refer to "qt on android:http Download and JSON parsing" to see the JSON syntax. Of course, we expect to learn QML from scratch, so you can also look straight down.Copyright Foruok, reproduced Please specify the source:Http://blog.csdn.net/foruokObjectThe suffix of the QML file is QML, which is actually a text file. The following is a simple QML file:Import QtQuick 2.0import qtquick.controls 1.1import qtquick.dialo

For the desktop platform Web layout Everyone is familiar with meta tags, it is always located inside the head element, to do SEO friends must have a special affection for meta, today we say mobile platform META tag, on the mobile platform META tag What are the magical effects?1. Meta-ViewportWhen it comes to mobile platform meta tags, you have to say viewport, so what is viewport?Viewport is the viewable area, for desktop browsers, viewport refers to the area that is used to look at the page aft

ideal viewport. All iphone ideal viewport width is 320px, regardless of its screen width is 320 or 640, that is, in the iphone, the 320px in the CSS represents the width of the iphone screen. But the Android device is more complex, there are 320px, 360px, 384px, and so on, about the different devices ideal viewport the width of how much, you can go to http://viewportsizes.com to see, which collects the ideal width of many devices. To sum up: PPK the