diff --git a/zh-cn/application-dev/quick-start/arkts-link.md b/zh-cn/application-dev/quick-start/arkts-link.md
index d97c35667c5b89353015ec3ee4ad5108c244463f..914323f56b8e1d14f941995b8e2e9f3cc239050d 100644
--- a/zh-cn/application-dev/quick-start/arkts-link.md
+++ b/zh-cn/application-dev/quick-start/arkts-link.md
@@ -227,10 +227,10 @@ struct Parent {
     Column() {
       Child({ items: $arr })
       ForEach(this.arr,
-        item => {
+        (item: void) => {
           Text(`${item}`)
         },
-        item => item.toString()
+        (item: ForEachInterface) => item.toString()
       )
     }
   }