修复bug

src/pages/exhibition/exhibitionList.vue

@@ -191,8 +191,9 @@ export default {
         return;
       }
       this.tableData = result.data.list;
-      this.tableData = this.tableData.map(item=>{
-        return {...item,startTime:item.startTime && item.startTime.slice(0,-3)}
+      this.tableData.forEach(v=>{
+        if(v.type==='fixed') v.startTime=''
+        else v.startTime =v.startTime.slice(0,-3)
       })
       this.total = result.data.total;
     },