解决tab切换闪屏问题

src/views/accounting/voucher/index.vue

@@ -448,7 +448,7 @@
         @tab-click="handleClick"
       >
         <el-tab-pane label="附件" name="first">
-          <el-table :data="fjList">
+          <el-table :data="fjList" v-if="activeName == 'first'">
             <el-table-column prop="flowCode" label="流程编号" />
             <el-table-column prop="fileName" label="文件名" />
             <el-table-column
@@ -524,7 +524,7 @@
           </el-dialog>
         </el-tab-pane>
         <el-tab-pane label="审批流程" name="second">
-          <el-table :data="splcList">
+          <el-table :data="splcList" v-if="activeName == 'second'">
             <el-table-column prop="flowCode" label="流程编号" />
             <el-table-column prop="fileName" label="文件名" />
             <el-table-column
@@ -603,7 +603,7 @@
           </el-dialog>
         </el-tab-pane>
         <el-tab-pane label="电子发票" name="third">
-          <el-table :data="dzfpList">
+          <el-table :data="dzfpList" v-if="activeName == 'third'">
             <el-table-column prop="invoiceCode" label="发票代码" />
             <el-table-column prop="fileName" label="文件名" />
             <el-table-column
@@ -956,7 +956,7 @@
           </el-dialog>
         </el-tab-pane>
         <el-tab-pane label="银行回单" name="fourth">
-          <el-table :data="yhhdList">
+          <el-table :data="yhhdList" v-if="activeName == 'fourth'">
             <el-table-column prop="serialNum" label="银行回单流水号" />
             <el-table-column prop="fileName" label="文件名" />
             <el-table-column