JAVA Freemarker (7)--macro, nested, and function

1. Basic grammar:

2, macro use

3, the use of macro nesting nested
Template page:

< #assign BasePath = request.contextpath/>

< #macro htmlhead title charset= "Utf-8" lang= "ZH-CN" >
 
 
To call a template's page:

< #include "/FTL/LAYOUT/LAYOUT1.FTL"/>

< @htmlHead title= "Freemarker macro Test" >
    <script src= "${ Basepath}/js/jquery1.2.6.pack.js "type=" Text/javascript "></script>
    <script type=" Text/javascript ">
        function Test () {
            var va = $ (" #test1 "). Val ();
            alert (VA);
        }   
    </script>
</@htmlHead >

< @htmlBody >
    hahaha <br>
    <input id= "test1" type= " Text "Name=" name1 "value=" My Motherland "><br>
    <a href=" # "onclick=" Test () "> Test jquery</a>
< /@htmlBody >
 
4, nested instructions
1) Nested instruction
is optional and can be used in < #macro > and

< #macro tag>  
         < #nested/>  
    </#macro >  

    < @tag >  
        <ul>  
          <li>1< /li>  
          <li>2</li>  
          <li>3</li>  
          <li>4</li>  
          <li>5</ li>  
        </ul>  
    </@tag >  
 
3) Running Results

<ul>  
  <li>1</li>  
  <li>2</li>  
  <li>3</li>  
  <li> 4</li>  
  <li>5</li>  
</ul>  
 
5, function, return

< #function avg nums...>   
  < #local sum = 0>   
  < #list nums as num>   
    < #local sum = sum + num>< c3/></#list >   
  < #if nums?size!= 0>   
    < #return sum/nums?size>   
  </#if >   
</# Function> ${avg (A)} ${avg (A, a)   
}   
${avg ()! " N/A "}   
 
————————————————————————————————————————————————— – Java Architect Project Combat, high concurrency cluster distributed, large data high availability video tutorials, total 760G

Download Address:

https://item.taobao.com/item.htm?id=555888526201
 
01. High-level architect 42 Phases
02.Java Advanced System Training Architecture Course 148 hours
03.Java Senior Internet Architect Course
04.Java Internet Architecture Netty, Nio, Mina, etc.-Video tutorials
05.Java Advanced Architecture Design 2016 finishing-video tutorials
06. Architect Foundation, advanced film
07.Java Architect Required Linux Operation series courses
08.Java Advanced System Training Architecture Course 116 hours
+
Hadoop series tutorials, Java design patterns and data structures, Spring Cloud Micro service, Springboot Primer

—————————————————————————————————————————————————–