diff --git a/src/components/composables/fragment.ts b/src/components/composables/fragment.ts
index 7e644de..587cf93 100644
--- a/src/components/composables/fragment.ts
+++ b/src/components/composables/fragment.ts
@@ -33,19 +33,18 @@ export const useStudyFragment = () => {
             return false;
         }
 
+        creatingFragment.value = true;
         try {
-            await ElMessageBox.confirm('确定要生成学习残片吗？', '提示', {
-                confirmButtonText: '确定',
-                cancelButtonText: '取消',
-                type: 'info',
-            });
-        } catch {
-            ElMessage.info('已取消生成');
-            return false;
-        }
-
-        try {
-            creatingFragment.value = true;
+            try {
+                await ElMessageBox.confirm('确定要生成学习残片吗？', '提示', {
+                    confirmButtonText: '确定',
+                    cancelButtonText: '取消',
+                    type: 'info',
+                });
+            } catch {
+                ElMessage.info('已取消生成');
+                return false;
+            }
             const res = await createFragments(sessionNum, fragmentContent.value);
             if (res.code === 200) {
                 ElMessage.success('学习残片生成成功！');