下拉添加过滤

src/views/device/maintenance/index.vue

@@ -122,6 +122,7 @@
                   v-model="maintenanceInfo.userName"
                   placeholder="维护人"
                   size="large"
+                  filterable
                   style="width: 240px"
                 >
                   <el-option
@@ -137,6 +138,7 @@
                   v-model="maintenanceInfo.confirmUser"
                   placeholder="确认人"
                   size="large"
+                  filterable
                   style="width: 240px"
                 >
                   <el-option