判断preventEvent是否存在

src/components/ImageUploader/index.jsx

@@ -5,7 +5,7 @@ const ImageUploader = ({ ids = [], setIds, uploadOne, preventEvent }) => {
   const [selectedImages, setSelectedImages] = useState([]);
   const [uploading, setUploading] = useState(false);
   useEffect(() => {
-    preventEvent(uploading);
+    typeof preventEvent !== "undefined" && preventEvent(uploading);
   }, [uploading]);
   const handleFileChange = async (event) => {
     const files = event.target.files;