diff --git a/pages/API/get-element-by-id/get-element-by-id.uvue b/pages/API/get-element-by-id/get-element-by-id.uvue
index 6975757b1f4ca33586de1ea15435359eac03b1c7..4ef31ce36fcbbf20a9a906e32062cc0635f4a480 100644
--- a/pages/API/get-element-by-id/get-element-by-id.uvue
+++ b/pages/API/get-element-by-id/get-element-by-id.uvue
@@ -41,10 +41,12 @@ export default {
       text.style.setProperty('color', 'red')
     },
     changeViewStyle(){
-      const view = uni.getElementById('view')!
-      view.style.setProperty('width', '90%')
-      view.style.setProperty('height', '50px')
-      view.style.setProperty('backgroundColor', '#007AFF')
+      const view = uni.getElementById<UniViewElement>('view')
+      if(view !== null){
+        view.style.setProperty('width', '90%')
+        view.style.setProperty('height', '50px')
+        view.style.setProperty('backgroundColor', '#007AFF')
+      }
     }
   }
 }