diff --git a/src/views/sevenLargeScreen/homeworkControlProcess/components/iscPlayer.vue b/src/views/sevenLargeScreen/homeworkControlProcess/components/iscPlayer.vue
index 513577e..0d2716b 100644
--- a/src/views/sevenLargeScreen/homeworkControlProcess/components/iscPlayer.vue
+++ b/src/views/sevenLargeScreen/homeworkControlProcess/components/iscPlayer.vue
@@ -353,13 +353,14 @@ const initPlayer = () => {
             `#player-${props.playerId}_playVideo${iWndIndex}`
           );
           const findFlag = Array.from(wnd.childNodes).find((item) => {
-            return item.id && item.id.includes("player_playVideo");
+            return item.id && item.id.includes(`player-${props.playerId}_playVideo`);
           });
           const findImg = Array.from(wnd.childNodes).some((item) => {
             return item.className == "classImg";
           });
           console.log(8848, findFlag, findImg, player_playVideo);
-          if (player_playVideo.src || findImg || findFlag.duration == "Infinity") {
+          // || findFlag.duration == "Infinity"
+          if (player_playVideo.src || findImg || findFlag.duration != null) {
             controls.classList.add("video-controls_flex");
           }
         }