update

src/views/Student/index.vue

@@ -1319,6 +1319,7 @@ const handleHomeworkSubmit = async () => {
             iframeElement.contentWindow.document &&
             iframeElement.contentWindow.document.body
         ) {
+          isSubmitting.value = true
 
           const _ajs = iframeElement.contentWindow.document.createElement('script')
           _ajs.type = 'text/javascript'