diff --git a/AstConv/FmtStruct.fs b/AstConv/FmtStruct.fs
index 5718de1..d98f56d 100644
--- a/AstConv/FmtStruct.fs
+++ b/AstConv/FmtStruct.fs
@@ -187,6 +187,7 @@ open HtmlStruct
             let xcontent = head_str + (nodes_str|> List.reduce(fun a b -> a + "\n" + b))
             use wr = new StreamWriter(path,false)
             wr.Write(xcontent)
+            printfn $"- {path}文档格式化完成。"