diff --git a/module/program/control.php b/module/program/control.php
index 4442cc403f..33b2304a40 100644
--- a/module/program/control.php
+++ b/module/program/control.php
@@ -627,7 +627,7 @@ class program extends control
         }
 
         $this->view->programTree = $this->programZen->buildTree($programs);
-        $this->view->link        = $this->program->getLink($module, $method, '{id}', '', 'program');
+        $this->view->link        = $this->programZen->getLink($module, $method, '{id}', '', 'program');
         $this->display();
     }
 
diff --git a/module/program/model.php b/module/program/model.php
index de61c835df..15fc5ca890 100644
--- a/module/program/model.php
+++ b/module/program/model.php
@@ -986,7 +986,7 @@ class programModel extends model
      * @access public
      * @return array|bool
      */
-    public function close(object $program, object $oldProgram) :array|bool
+    public function close(object $program, object $oldProgram): array|bool
     {
         $program = $this->loadModel('file')->processImgURL($program, $this->config->program->editor->close['id'], $this->post->uid);
         $this->dao->update(TABLE_PROJECT)->data($program)
@@ -1010,7 +1010,7 @@ class programModel extends model
      * @access public
      * @return array|false
      */
-    public function activate(object $program, $oldProgram) :array|false
+    public function activate(object $program, $oldProgram): array|false
     {
         if($program->begin > $program->end)
         {
@@ -1066,35 +1066,6 @@ class programModel extends model
         return true;
     }
 
-    /**
-     * Get link for drop tree menu.
-     *
-     * @param  string $moduleName
-     * @param  string $methodName
-     * @param  int    $programID
-     * @param  string $vars
-     * @param  string $from
-     * @access public
-     * @return string
-     */
-    public function getLink($moduleName, $methodName, $programID, $vars = '', $from = 'program')
-    {
-        if($from != 'program') return helper::createLink('product', 'all', "programID={$programID}" . $vars);
-
-        if($moduleName == 'project')
-        {
-            $moduleName = 'program';
-            $methodName = 'project';
-        }
-        if($moduleName == 'product')
-        {
-            $moduleName = 'program';
-            $methodName = 'product';
-        }
-
-        return helper::createLink($moduleName, $methodName, "programID={$programID}");
-    }
-
     /**
      * 获取一级项目集id:name的键值对。
      * Get top program pairs.
diff --git a/module/program/test/model/getlink.php b/module/program/test/model/getlink.php
deleted file mode 100644
index 06b5354cc1..0000000000
--- a/module/program/test/model/getlink.php
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env php
-<?php
-include dirname(__FILE__, 5) . '/test/lib/init.php';
-
-/**
-
-title=测试 programModel::getLink();
-cid=1
-pid=1
-
-项目集页面跳转项目集项目列表 >> project
-非项目集页面跳转项目集列表   >> all
-
-*/
-
-global $tester;
-$tester->loadModel('program');
-$link1 = $tester->program->getLink('program', 'project', 1);
-$result = '';
-if(strpos($link1, 'project')) $result = 'project';
-r($result) && p() && e('project'); // 项目集页面跳转项目集项目列表
-
-$link2 = $tester->program->getLink('program', 'project', 1, '', 'product');
-if(strpos($link2, 'all')) $result = 'all';
-r($result) && p() && e('all'); // 非项目集页面跳转项目集列表
diff --git a/module/program/zen.php b/module/program/zen.php
index fc115a4253..6dcc5e4582 100644
--- a/module/program/zen.php
+++ b/module/program/zen.php
@@ -117,4 +117,34 @@ class programZen extends program
         }
         return $result;
     }
+
+    /**
+     * 获取下拉树菜单的链接。
+     * Get link for drop tree menu.
+     *
+     * @param  string    $moduleName
+     * @param  string    $methodName
+     * @param  int       $programID
+     * @param  string    $vars
+     * @param  string    $from
+     * @access protected
+     * @return string
+     */
+    protected function getLink(string $moduleName, string $methodName, string $programID, string $vars = '', string$from = 'program'): string
+    {
+        if($from != 'program') return helper::createLink('product', 'all', "programID={$programID}" . $vars);
+
+        if($moduleName == 'project')
+        {
+            $moduleName = 'program';
+            $methodName = 'project';
+        }
+        if($moduleName == 'product')
+        {
+            $moduleName = 'program';
+            $methodName = 'product';
+        }
+
+        return helper::createLink($moduleName, $methodName, "programID={$programID}");
+    }
 }