diff --git a/zh-cn/application-dev/reference/apis/js-apis-convertxml.md b/zh-cn/application-dev/reference/apis/js-apis-convertxml.md
index b5bad4a12fb5be6631b00662311387e9f217dd18..cbb605b604614e67100be55225ba64230b8f4206 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-convertxml.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-convertxml.md
@@ -49,10 +49,10 @@ let xml =
     '</note>';
 let conv = new convertxml.ConvertXML();
 let options = {trim : false, declarationKey:"_declaration",
-               instructionKey : "_instruction", attributesKey : "_attributes",
-               textKey : "_text", cdataKey:"_cdata", doctypeKey : "_doctype",
-               commentKey : "_comment", parentKey : "_parent", typeKey : "_type",
-               nameKey : "_name", elementsKey : "_elements"}
+    instructionKey : "_instruction", attributesKey : "_attributes",
+    textKey : "_text", cdataKey:"_cdata", doctypeKey : "_doctype",
+    commentKey : "_comment", parentKey : "_parent", typeKey : "_type",
+    nameKey : "_name", elementsKey : "_elements"}
 let result = JSON.stringify(conv.convert(xml, options));
 console.log(result)
 ```