diff --git a/src/utils/dialog.util.ts b/src/utils/dialog.util.ts
index f85db1d..a4bf2c8 100644
--- a/src/utils/dialog.util.ts
+++ b/src/utils/dialog.util.ts
@@ -9,6 +9,15 @@ export function addDialogButtons(dialog: HTMLElement) {
       restoreWatchedLessons();
     }},
     { className: "start-watching", text: "开始观看", onClick: () => {
+      if (localStorage.getItem("isStartedLesson")) {
+        alert("你已经开始了刷课会话，请先结束刷课会话");
+        return;
+      }
+      if (localStorage.getItem("currentLesson")) {
+        localStorage.setItem("isStartedLesson", "true");
+        location.reload();
+        return;
+      }
       const selectedLessons = getSelectedLessons();
       autoWatchVideos(selectedLessons);
     }},
@@ -16,6 +25,9 @@ export function addDialogButtons(dialog: HTMLElement) {
       localStorage.removeItem("watchedLessons");
       localStorage.removeItem("currentLesson");
       localStorage.removeItem("isStartedLesson");
+    }},
+    { className: "toggle-watching", text: "暂停刷课", onClick: () => {
+      localStorage.removeItem("isStartedLesson");
     }}
   ];