fix : 上传文件表格滚动时, 表头固定

src/views/project-management/mobledetail/SpecialFundDetailMobile.vue

@@ -44,7 +44,7 @@
         <baseTitle title="附件列表"></baseTitle>
         <el-col :span="24">
           <el-form-item>
-            <fvTable style="width: 100%;max-height: 300px;" v-if="showTable" :tableConfig="fileTable"
+            <fvTable style="width: 100%;max-height: 300px;" height="300"  v-if="showTable" :tableConfig="fileTable"
                      :data="formData.files" :isSettingCol="false" :pagination="false">
               <template #empty>
                 <el-empty :image-size="90" description="暂无数据" style="padding: 0"/>
@@ -154,7 +154,6 @@ const fileTable = reactive({
       label: '序号',
       align: 'center',
       width: 85,
-      fixed:true
     },
     {
       prop: 'originalFileName',