修正跳转地址

client/mobile/components/Exam/ExamIndex.tsx

@@ -51,7 +51,7 @@ function ExamIndex() {
       return;
     }
     // 将昵称和教室号作为参数传递到答题页
-    navigate(`/exam/card?nickname=${encodeURIComponent(nickname)}&classroom=${classroom}`);
+    navigate(`/mobile/exam/card?nickname=${encodeURIComponent(nickname)}&classroom=${classroom}`);
   }, [nickname, navigate, classroom, classroomData]);
 
   if (isLoading) {