diff --git a/src/components/study/courseDetail.vue b/src/components/study/courseDetail.vue
index b9c122b..e25bdd6 100644
--- a/src/components/study/courseDetail.vue
+++ b/src/components/study/courseDetail.vue
@@ -427,7 +427,9 @@ export default {
         //最后2s调用结束接口
         // 获取视频总时长
         let duration = document.getElementById("video").duration;
-        if (curTime >= (duration - 2)) {
+        // console.log(curTime, _this.current_sign, duration, "-----")
+        if (curTime >= (duration - 2) && _this.current_sign >= (duration - 10)) {
+
           if (_this.last30sTimer && _this.section[_this.choose_section_index].is_end != 1) {
             // console.log("最后2秒我运行了11111111111111111");
             _this.last30sTimer = false;
@@ -447,14 +449,24 @@ export default {
         _this.current_sign = _this.record;
         Toast("从上次记录的地方开始播放");
         setTimeout(function () {
+          // 先清除旧定时器
+          if (_this.video_timer) {
+            clearInterval(_this.video_timer);
+          }
           _this.video_timer = setInterval(timer, 100);
         }, 1000);
       }
       function onPlayerEnded() {
-        document
-          .getElementById("video")
-          .removeEventListener("ended", onPlayerEnded, false);
-        _this.onPlayerEnded();
+        const duration = document.getElementById("video").duration;
+        // console.log(duration, "视频播放完啦，真的吗？");
+
+        if (_this.current_sign >= duration - 10) {
+          document
+            .getElementById("video")
+            .removeEventListener("ended", onPlayerEnded, false);
+          _this.onPlayerEnded();
+        }
+
       }
 
       console.log("视频播放进度:", _this.record);
@@ -463,6 +475,10 @@ export default {
         document.getElementById("video").addEventListener("play", plays, false);
       } else {
         // vd.play();
+        // 先清除旧定时器
+        if (_this.video_timer) {
+          clearInterval(_this.video_timer);
+        }
         _this.video_timer = setInterval(timer, 100);
       }
       // 监听视频播放完成
@@ -870,6 +886,8 @@ export default {
   },
   beforeRouteLeave(to, from, next) {
     // 确保离开路由时清除定时器
+    // console.log("离开路由时清除定时器:", this.video_timer);
+
     if (this.video_timer) {
       clearInterval(this.video_timer);
       this.video_timer = null; // 重置定时器变量