diff --git a/repo/js/模板匹配区域坐标输出/main.js b/repo/js/模板匹配区域坐标输出/main.js
index 02f4d4977..ce25d4ad5 100644
--- a/repo/js/模板匹配区域坐标输出/main.js
+++ b/repo/js/模板匹配区域坐标输出/main.js
@@ -86,7 +86,7 @@ async function drawAndClearRedBox(result, delay) {
         ro2.dispose();
         drawRegion2.dispose(); // 释放对象
     }
-    drawRegion.dispose();
+    drawRegion = null; // 释放对象
 }
 // 主函数
 (async function () {