Download a complete example of a JSON data row-to-column conversion application
Background
First, let's explain why we want to convert columns from rows to columns.
Time
Category
Cost
2014-07-08
Electricity
120
2014-07-08
Water Fee
23
2014-07-09
Electricity
44
2014-07-09
Water Fee
77
2014-07-10
Application example of iOS message mechanism--Exception handlingRecently found a common exception in the Project tool Nullsafe, analyzed its implementation principle, accidentally found a small bug, now share it, about this article demo has been uploaded to GitHub, read if there is harvest, welcome star, if there is doubt welcome issue, Everyone to study together. In iOS development, we may encounter the fo
example demonstrates how to use the rdiframework.net Framework's Workflow componentmake business process definition - Leave application Process Reference article:Rdiframework.net-based on. NET rapid Information System development Framework-Series catalogueRdiframework.net━. NET rapid Information System development framework-Introduction to Workflow componentsRdiframework.net━. NET rapid Information System
, right?Step 2:Install two red5 demos.This is required in this example. Install the messagerecorder and oflademo demos. After the red5 service is started, visit http: // localhost: 5080/. Click the install link on the page to bring up the red5 application installation list page. Select messagerecorder, oflademo, click the Install button in the lower-right corner. After the installation is successful, two ne
previous Incremental backup, while each differential backup is based on full backup,
innobackupex --incremental /data/backups --incremental-basedir=BASEDIR
-- Incremental/data/backups: Specifies the path to save the Incremental backup.
-- Incremental-basedir = basedir: Specifies which full backup is used for Incremental backup.
After each backup, xtrabackup will save a file, which records the Backup Type, start point and end point of the lsn. Example
First go to Baidu Ueditor official website Download 1.4.3. NET versionHttp://ueditor.baidu.com/build/build_down.php?n=ueditorv=1_4_3-utf8-net1. Then copy it to the project:2. Move the App_Code file in the net file to the project App_Code folder3. Move the files under the Net Folder to the project root directory4. Merge the Cofig file in the Net Folder with the project config file5. Modify Ueditor.config.jsRevision changed to6. Configure the edit upload path Config.jsonHere to upload pictures as
This article mainly introduces the application of SimpleXML in php + xml programming. The example shows how SimpleXML functions operate XML files, for more information about SimpleXML programming in php and xml, see the following example. Share it with you for your reference. The details are as follows:
SimpleXML's core idea is to operate xml files in an object-
Phpmysqli extension Library Application example
Example of php mysqli Extension Library:
# Connecting to a database
$ Link = mysqli_connect ("localhost", "root", "root ");
# Selecting a database
$ Link-> select_db ("rorely") or die ("cocould not find database ");
# Querying databases
$ Result = $ link-> que
Unity Container application example: unitycontainer1. Reference Unity
Right-click the project reference and choose manage Nuget package> search for unity> install Unity and Unity Interception Extension, as shown in.
2. Create a basic class
Take the data layer injection for commodity query as an example.
1. First create the commodity entity Model. If the commodity
However, in today's large web interaction projects, such as large webgame projects, the JavaScript event bubbling effect is worth paying attention to. This article is a simple example of JavaScript event bubbling and usage considerations.
If you're not impressed by the JavaScript event bubbling, take a look at my previous blog, "JavaScript event bubbling Introduction and application." This paper is practic
For the majority of the parents can be good chop hands, we are also spelled, "Double 11" once, we began to prepare "double 12", the big promotion activity has many, this article takes "the next single has the propriety" the function realization, talks about Redis several uses, like Redis collection, the concrete application which increases. Here just a small example, in a large web site multiple terminals,
single case mode definition:
Ensure a class has only one instance, and provide a global point of access to it.
Dynamically ensures that a class has only one instance and instantiates it itself and provides this instance to the entire system.
As shown in the figure above (intercepts the book from the head of Patterns).
Using the private constructor ensures that an instance is generated in an application and is instantiated (using the new Singleton
This article describes examples of the Form Verification plug-in Validation application. For more information, see jquery. validation is an excellent jquery plug-in that can verify client forms and provides many customizable attributes and methods for good scalability. Now, based on the actual situation, I organize the verification frequently used in the project into an instance DEMO. This article explains this instance to understand the
IPhone Enterprise Application Example 3: Program Framework Analysis
The webdoc mobile Project is a typical multi-layer process system. Therefore, the system mainly uses uinavigation controller to navigate the user interface, so that when the user enters the next interface from the previous interface, after the next page is processed, you can easily return to the previous page. After you log on to the system
This article mainly introduces the method of building paging application in C #, and analyzes the concrete steps and related implementation techniques of C # to create paging function with instance form, and the friends who need can refer to the following
The example in this article describes how C # constructs a paging application. Share to everyone for your re
Verification code generation and application example
In the Write user authentication page, such as registration, login, in order to enhance the security of user login, add verification code verification.
The verification code generates a PNG image through GD and assigns the $randval random number to $_session[' Login_check_num ', which is judged correctly by comparing the $_post of the user input. To achie
PostgreSQL has a very useful built-in function, generate_series, which can be used to generate a series of filled data according to different rules.I. Syntax
generate_series(start,stop) --int or bigintgenerate_series(start,stop,step) --int or bigintgenerate_series(start,stop, step interval) --timestamp or timestamp with time zone
II. Application Example
1. Int type. The default valu
Java image interface development example
For jradiobutton, jcheckbox, and jlabel applications, you only need to modify the jcheckbox and jlabel applications and add single-choice buttons. A set of note single-choice buttons must be placed in the buttongroup to take effect. The Code is as follows:Import java. AWT. borderlayout;
Import java. AWT. Font;
Import java. AWT. event. actionevent;
Import java. AWT. event. actionlistener;
Import javax. Swing. b
XmlTree label tree menu application example: B2C website Department management, xmltreeb2c
Light B2C e-commerce websitesDepartment (organization) management is a typical tree menu application instance.
The following describes the simple implementation process.
1. xml file for storing Department Information (Light B2C e-commerce websitesBase/dept. xml file in the
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