ThinkPHP学习（四）volist标签高级应用之多重嵌套循环

Action代码：

    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

//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 $service[$i]["pc_cn"], "product"=>M("product")->where("prod_class_id=".$service[$i]["pcid"])->order("oid ASC")->select()));			}

//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");			}		}	}

	

{$sp.srvName}
			
{$pd.prod_cn}
				
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