Action代码：
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public function index(){
$prod = I( "get.prod_en" );
$id = I( "get.id" , 0 , "int" );
if ($prod == "" ){
$serviceProduct = array(); //多重循环遍历的数组
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//数据保存在两张表中，这里通过循环初始化$serviceProduct数组
$service = M( "product_class" )->order( "oid ASC" )->select();
for ($i = 0 ; $i < count($service); $i++)
{
array_push($serviceProduct, array( "srvName" =>$service[$i][ "pc_cn" ], "product" =>M( "product" )->where( "prod_class_id=" .$service[$i][ "pcid" ])->order( "oid ASC" )->select()));
}
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//如果要在模板中输出变量，必须在在控制器中把变量传递给模板，系统提供了assign方法对模板变量赋
值，无论何种变量类型都统一使用assign赋值。
$ this ->assign( "serviceProduct" , $serviceProduct);
$ this ->display();
} else {
if ($id > 0 ){
$ this ->display( "detail" );
} else {
$ this ->assign( 'prod_en' , $prod);
$clsList = M( "question_class" )->order( "oid ASC" )->select();
$ this ->assign( 'clsList' , $clsList);
$qusList = M( "question" )->order( "oid ASC" )->select();
$ this ->assign( 'qusList' , $qusList);
$ this ->display( "list" );
}
}
}
模板代码：
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<volist name= "serviceProduct" id= "sp" key= "i" >
<dl class = "dlist odd" >
<dt>{$sp.srvName}</dt>
<volist name= "sp.product" id= "pd" key= "j" >
<dd>{$pd.prod_cn}</dd>
< if condition= "$j lt count($sp['product'])" >
<dd>|</dd>
</ if >
</volist>
< if condition= "count($sp['product']) EQ 0" >
<dd> </dd>
</ if >
</dl>
</volist>
当使用多重嵌套循环时，需要为每一个volist指定key值，通过
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< if condition= "$j lt count($sp['product'])" ></ if >
判断是否为数组中的最后一个元素。查看更多关于ThinkPHP学习（四）volist标签高级应用之多重嵌套循的详细内容...