diff --git a/src/pages/message/message.vue b/src/pages/message/message.vue
index 3436996..3ef035f 100644
--- a/src/pages/message/message.vue
+++ b/src/pages/message/message.vue
@@ -121,9 +121,8 @@ export default {
             this.switchTab(e.detail.current);
         },
         setTabHeight() {
-            let element = ".tab" + this.tabIndex;
             let query = uni.createSelectorQuery().in(this);
-            query.select(element).boundingClientRect();
+            query.select(".tab" + this.tabIndex).boundingClientRect();
             query.exec((res) => {
                 if (res && res[0]) {
                     this.tabHeight = res[0].height;