diff --git a/guide/shell-node.md b/guide/shell-node.md
index 57e62fd7c5125bbc46538b5ad649b397d63d5898..feabb76c639dc6d837ae99133dd93f7e7beca4ae 100644
--- a/guide/shell-node.md
+++ b/guide/shell-node.md
@@ -98,6 +98,7 @@ pipeline:
       aaa: aaa${global.abc}
       bBb: bbb666
       CCC: ccc666
+    # 数组形式
     script: 
       - echo $AAA
       - echo $BBB