diff --git a/src/views/system/oss/index.vue b/src/views/system/oss/index.vue
index ec11708790f9fcad0471a383aa2bb807ae0bac62..512897b849dcfa96852cf3ec4b541eb3a167cc4e 100644
--- a/src/views/system/oss/index.vue
+++ b/src/views/system/oss/index.vue
@@ -201,11 +201,10 @@ const getList = async () => {
   loading.value = false;
   showTable.value = true;
 }
-function checkFileSuffix(fileSuffix: string[]) {
-  let arr = ["png", "jpg", "jpeg"];
-  return arr.some(type => {
-    return fileSuffix.indexOf(type) > -1;
-  });
+function checkFileSuffix(fileSuffix: string | string[]) {
+  const arr = [".png", ".jpg", ".jpeg"];
+  const suffixArray = Array.isArray(fileSuffix) ? fileSuffix : [fileSuffix];
+  return suffixArray.some(suffix => arr.includes(suffix.toLowerCase()));
 }
 /** 取消按钮 */
 function cancel() {