feat base_bug修改

src/views/systemList/base/base.vue

@@ -16,6 +16,7 @@
               :action="uploadUrl"
               :on-change="handleChange"
               :before-upload="beforeUpload"
+              :on-exceed="handleExceed"
               :auto-upload="false"
               accept="image/jpeg,image/png"
             >
@@ -42,13 +43,11 @@
 </template>
 
 <script lang="ts" setup>
-import { ref, reactive } from 'vue';
-import type { UploadProps, UploadUserFile, UploadRequestOptions } from 'element-plus';
+import { ref, onMounted } from 'vue';
+import type { UploadProps, UploadUserFile } from 'element-plus';
 import { uploadDemo, getDemo, updateDemo } from '@/api/systemList/index';
 import { ElMessage } from 'element-plus';
 import { Plus } from '@element-plus/icons-vue';
-import { on } from 'node:cluster';
-import { get } from 'node:http';
 
 const uploadUrl = import.meta.env.VITE_BASE_API + '/system/logo/upload';
 
@@ -101,10 +100,14 @@ const dialogVisible = ref(false);
 
 const handleRemove: UploadProps['onRemove'] = (uploadFile, uploadFiles) => {
   // 清空 logo 字段
-  form.value.name = '';
   form.value.url = '';
 };
 
+// 处理超出限制的情况
+const handleExceed: UploadProps['onExceed'] = () => {
+  ElMessage.warning('最多只能上传1张图片，请先删除现有图片后再上传');
+};
+
 // 自定义 change 处理函数
 const handleChange = (file: any) => {
   // ⚠️ 核心点：必须使用 file.raw 才能获取到真实的原生 File 对象