Merge remote-tracking branch 'origin/master'

src/views/safetyEducationExam/securityExam/exam/examInfo.vue

@@ -271,7 +271,7 @@
           pageSize: 20
         })
         this.$set(this,'dateRange',[]);
-        this.$refs['table-box'].clearSelection();
+        this.clear();
         this.handleQuery()
       },
       //开启按钮