update

src/views/classes/completion-detail.vue

@@ -18,7 +18,7 @@
             </el-row>
           </el-tab-pane>
           <el-tab-pane label="具体数据" name="data">
-            <el-row type="flex" align="middle" justify="end" style="margin-bottom:20px">
+            <el-row type="flex" align="middle" justify="end" style="margin-bottom:20px"  v-if="cdata.length > 0">
               <el-col :span="2">
                 <el-button size="mini" type="primary" @click="toExcel">导出数据</el-button>
               </el-col>

src/views/classes/print.vue

@@ -9,7 +9,9 @@
             </el-col>
           </el-row>
         </el-tab-pane>
-        <el-tab-pane label="打印证书" name="cert" :lazy="true">配置管理</el-tab-pane>
+        <el-tab-pane label="打印证书" name="cert" :lazy="true">
+          <cert-card :list="studList" :startdate="startdate"></cert-card>
+        </el-tab-pane>
         <el-tab-pane label="打印报道表" name="sign" :lazy="true">
           <sign-card v-loading="loading" :list="studList"></sign-card>
         </el-tab-pane>
@@ -40,7 +42,7 @@ const { mapActions: director } = createNamespacedHelpers('director'); //教师
 export default {
   name: 'print',
   props: {},
-  components: { listFrame, nameCard, signCard, lessonTable },
+  components: { listFrame, nameCard, signCard, lessonTable, certCard },
   data: function() {
     return {
       active: 'name',