bug fixes

src/pages/student/components/course.vue

@@ -51,7 +51,7 @@
       </el-table-column>
       <el-table-column label="毕业时间">
         <template slot-scope="scope">
-          <span v-show="!isEdit && scope.row.graduation_status !== 2">{{scope.row.graduation_time}}</span>
+          <span v-show="!isEdit || scope.row.graduation_status !== 2">{{scope.row.graduation_time}}</span>
           <el-date-picker v-show="isEdit && scope.row.graduation_status === 2" v-model="scope.row.graduation_time" type="datetime" value-format="yyyy-MM-dd hh:mm:ss" placeholder="请选择" size="mini" style="width:100%;"/>
         </template>
       </el-table-column>
@@ -128,7 +128,6 @@ export default {
             type: 'selection',
             minWidth: '50px',
             fixed: 'left',
-            visible: this.hasDelete,
             'reserve-selection': true,
             selectable: this.tableSelectable
           },