fix 修复文件上传组件 样式错乱与上传成功后列表数据异常问题

对应gitee issue https://gitee.com/y_project/RuoYi-Vue/issues/I53CS3

src/components/FileUpload/index.vue

@@ -16,6 +16,7 @@
     >
       <!-- 上传按钮 -->
       <el-button type="primary">选取文件</el-button>
+    </el-upload>
     <!-- 上传提示 -->
     <div class="el-upload__tip" v-if="showTip">
       请上传
@@ -23,8 +24,6 @@
       <template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b> </template>
       的文件
     </div>
-    </el-upload>
-
     <!-- 文件列表 -->
     <transition-group class="upload-file-list el-upload-list el-upload-list--text" name="el-fade-in-linear" tag="ul">
       <li :key="file.uid" class="el-upload-list__item ele-upload-list__item-content" v-for="(file, index) in fileList">
@@ -142,7 +141,7 @@ function handleUploadError(err) {
 function handleUploadSuccess(res, file) {
   uploadList.value.push({ name: res.fileName, url: res.fileName });
   if (uploadList.value.length === number.value) {
-    fileList.value = fileList.value.concat(uploadList.value);
+    fileList.value = fileList.value.filter(f => f.url !== undefined).concat(uploadList.value);
     uploadList.value = [];
     number.value = 0;
     emit("update:modelValue", listToString(fileList.value));