8 digital's 8 realm
It is difficult to study the classic questions. We will come up with a practical question for deduction. Eight Digital problems have a corresponding question in the Peking University online evaluation system. The question is described as follows:
Eight
Time Limit: 1000 MS Memory Limit: 65536 K Special Judge
Description
The 15-puzzle has been aroundfor over 100 years; even if you don't k
In this article, we will sort out some basic knowledge that needs to be learned before Windows 8 Development and list it as a corresponding table for your reference. Some of them come from msdn and some from my own organization, correct the error. Thank you.
I. Relationship between creating common XAML project templates and various languages
Project type name
Role and description of the project type
Applicable Language
Blank Ap
The default progress bar in Windows 8 also keeps pace with the times, different from the previous in Silverlight. This article describes three different progress bars. In addition, this article also describes two timers.
ProgressEntries
Main attributes:
Value: The current progress value.
Maximum: maximum progress value.
Isindeterminate: Specifies whether the progress bar is determined.
Confirm progress bar: Progress bar with clear progress. The prog
In Windows 8, controls include contextmenuopening events of input controls such as textbox and righttapped events of non-input controls such as buttons.
This article describes the usage of two events. The
Popupmenu is a class of the shortcut menu.
First, let's take a look at the instantiation of the specific menu class and get the project code.
///
Then let's take a look at the event of registering the right-click processing of the two controls as fo
frame.
Vi. ICMP Message Type
ICMP defines five common error messages and six query message types, and uses code to express the segments of different types of messages.
VII. Application of ICMP
A. Ping
Ping is the most famous application of ICMP. When a website cannot be accessed. Usually ping this website. Ping will display some useful information. The general information is as follows:
The word Ping is derived from the sonar location, and this program does the same thing. It uses ICMP p
some correlated data field values. In this case, we allow the field to be public from a practical point of view, and define the (class) structure with struct.
8. encapsulate collection P208 encapsulation collection
If a field of the class is set type, the processing method for this set should be different. The value function should not return the set itself, because it allows users to modify the set content, but the set owner does not know it at
are still some restrictions on this definition. Only the namespace containing the member declaration can contain the definition of the member.
8. global namespace
The name defined in the global scope (the name declared outside the namespace of any class, function, or namespace) is defined in the global namespace. The global namespace is implicitly declared and exists in each program. In the global scope, each object is defined to add those names to t
In this article, we will demonstrate how to develop MVVM in Windows 8, and first we prepare two auxiliary classes as follows:
Viewmodebase class:
public class viewmodebase:inotifypropertychanged
{public
event PropertyChangedEventHandler propertychanged ;
Delegatecommand class:
public class Delegatecommand:icommand {private readonly Action m_exeaction;
Private ReadOnly func
The GridView in Windows 8 uses (ii) and Datatemplateselector
Examples of what is described in this article are still used in the previous article, and there is no doubt that you can refer to the previous article.
One GroupStyle in the GridView control we can display the data in groups, and by controlling the GroupStyle of the GridView, we set up Groupstyle.headertemplate and Groupstyle.panel respectively. The following code:
Two datatemplatesele
In Windows 8, our Pasteboard holds 4 kinds of information: text, pictures, Web pages, files. In this article we will copy and paste each of these 4 elements, of course, you can also copy the 4 elements externally, and then paste it in the program.
Datapackage: Contains data that the user wants to exchange with another application
Set a relay variable to save the user's value
datapackage dp = new Datapackage ();
First: Let's take a look at t
In Windows 8, there are three kinds of notifications in a timely manner to remind users that they are Toast,tile,badge
Toast: is a reminder notification that pops up in the application in a timely manner.
Tile: is a magnetic notice, used in the Metro interface of the application icon on the picture and text notification.
Badge: Is in the magnetic paste tips notice, used in the Metro interface of the application icon in the lower right corner to ind
The default progress bar in Windows 8 also evolves with the times, unlike in previous Silverlight. This article will cover three different progress bars, as well as two kinds of timers in this article.
Progress bar
Main properties:
Value: Current progress value.
Maximum: Maximum progress value.
Isindeterminate: Specifies whether the progress bar is determined.
To determine the progress bar: the progress of a clear progress bar, completed progres
A number of new mouse events are used in Windows 8 to replace previously Silverlight mouse events with the following common events:
Pointerwheelchanged: The middle mouse button sliding event.
Pointerpressed: When the mouse clicks down, the event is triggered.
Pointerreleased: When the mouse clicks down when releasing the mouse triggers the event.
Pointerentered: Triggers once when the mouse enters a valid range.
Pointermoved: Triggers an event wh
If a website needs to be internationalized, it needs to convert the code from GB2312 to a UTF-8, there are many problems to note, if not completely converted, there will be a lot of coding problems! Next, I will share with you the php page through this article. mysql database is converted to UTF-8 garbled characters. example 1 of UTF-8:
PHP page to UTF-
Use directvobsub as the subtitle plug-in for the player.
Convert subtitles to UTF-8 no Bom format. The subtitles are garbled during playback.
Convert subtitles to UTF-8 BOM format. The subtitles are normal during playback.
It seems that directvobsub does not support UTF-8 no Bom.
Directvobsub (vsfilter) Official Website: http://sourceforge.net/projects/gu
Example One:
PHP page to UTF-8 encoding problem
1. Add a line at the beginning of the code: header ("Content-type:text/html;charset=utf-8");
2.PHP file Encoding Problems Click the Editor Menu: "File", "Save As", you can see the current file encoding, to ensure that the file encoding is: UTF-8, if it is ANSI, you need to change the encoding: UTF-
New Features of JDK 8-Lambda expressions and new features of JDK 8 lambda
JDK 8 has been released for nearly four years. It seems a little out of date to talk about its new features ". Although JDK8 is no longer "new", Lambda expressions, one of its important features, are still not used by most developers or even well-known.
As we all know in the development env
Java 8 only needs one line of code to read files-Beijing shangxue and Java 8
Java 8 only needs one line of code to read a file
This method ensures that the file attribute is disabled when all the bytes of the file are read. Otherwise, an IO exception or other unchecked exceptions will occur. This means that you do not need to close the file after reading the last
(245) how much is the expansion of the octal unit of 8 (8 is a subscript), as shown in the following figure. Why are the results of 1 and 2 different 12*8 ^ 2 nbsp; + nbsp; 4*8 ^ 1 nbsp; + 5128 + 32 + 5 results: 1652245 nbsp; = nbsp; 8*30 nbs (245) What is the
Transferred from: https://www.cnblogs.com/kclteam/p/5278926.htmlThe new project, presumably the situation is this: there may be many countries, different language users, the analogy of Chinese, traditional Chinese, Korean, Japanese and so on, the development of the choice of UTF-8 coding, development smooth, no problem. Yesterday did a CSV export function, the export of something completely chaotic:Set mb_convert_encoding ($content, "gb2312", "UTF-
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