diff --git a/zh-cn/application-dev/reference/apis/js-apis-arraylist.md b/zh-cn/application-dev/reference/apis/js-apis-arraylist.md
index fa14e6490a7befdf21316d17c6c55fd55ba34120..e2ed82106b61b3b8440a211e856c2a0377614325 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-arraylist.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-arraylist.md
@@ -799,12 +799,12 @@ arrayList.add(4);
 // 使用方法一：
 let numbers: Array<number> = arrayList.convertToArray()
 for (let item of numbers) {
-  console.log(`hyq value : ${item}`);
+  console.log(`value : ${item}`);
 }
 
 // 使用方法二：
 let iter = arrayList[Symbol.iterator]();
-let temp = iter.next();
+let temp: IteratorResult<number> = iter.next().value;
 while(!temp.done) {
     console.log(`value:${temp.value}`);
     temp = iter.next();