This section demonstrates how to create an application for < AppML > through the following four simple steps.

The next chapter will show you how to download < AppML > and start developing Web applications on your own computer.

4.2.1. 1.创建模型（Model）

Create a file using the following

<appml> <datasource> <database> <connection>Democonnection> <sql>SELECT CustomerName,ContactName,City,Country FROM Customerssql> <orderby>CustomerNameorderby> database> datasource> <filters> <query> <field>CustomerNamefield> query> filters> appml>    
 Models (we recommend) save the file as Customers.xml in the subdirectory. 
 
 
 Model analysis  
 
 The < appml > tag defines the model. 
 
 The < datasource > tag defines the data source for the model. 
 
 The < database > tag defines the database. 
 
 The < connection > tag defines the link to the database. 
 
 < sql > tag definition data query 
 
 The < orderby > tag defines the default sort. 
 
 The < query > tag defines a legal query filter. 
 
  
 
  4.2.2.  two。 Create a WEB page  
 
 In the first < AppML > app, create a HTML page: 
 
 
 Example  
 
 
 
   
My First Web Application
 
 
 Customer City Country 
 
 Alfreds Futterkiste Berlin Germany 
 
   
 
 
 
  尝试一下 »  
 
 
 
 
  4.2.3.  3. Add Styl  
 
 Add cascading styles to your web page when executing e < AppML > app: 
 
 
 Example  
 
 
 
      
My First Web Application
 
 
 Customer City Country 
 
 Alfreds Futterkiste Berlin Germany 
 
   
 
 
 
  尝试一下 »  
 
 
 
 
  4.2.4.  4. Add a script and then execute the application  
 
 Add a script to your web page to run < AppML > app: 
 
 Example 
 
 
 
      
My First Web Application
 
 
 
 Customer City Country 
 
 #CustomerName# #City# #Country# 
 
 
     
 
 
 
  尝试一下 »  
 
 
 
  4.2.5.  Case analysis  
 
 The < AppML > library contains a large number of functions. These functions can be called from your web page.