diff --git a/_xtool/internal/parser/parser.go b/_xtool/internal/parser/parser.go
index 86bdc60b..9ef9fb3a 100644
--- a/_xtool/internal/parser/parser.go
+++ b/_xtool/internal/parser/parser.go
@@ -196,7 +196,7 @@ func (ct *Converter) ParseComment(rawComment string) *ast.CommentGroup {
 	lines := strings.Split(rawComment, "\n")
 	commentGroup := &ast.CommentGroup{}
 	for _, line := range lines {
-		commentGroup.List = append(commentGroup.List, &ast.Comment{Text: line + "\n"})
+		commentGroup.List = append(commentGroup.List, &ast.Comment{Text: line})
 	}
 	return commentGroup
 }
diff --git a/_xtool/internal/parser/testdata/comment/expect.json b/_xtool/internal/parser/testdata/comment/expect.json
index f30194af..75323f56 100755
--- a/_xtool/internal/parser/testdata/comment/expect.json
+++ b/_xtool/internal/parser/testdata/comment/expect.json
@@ -5,7 +5,7 @@
       "Doc": {
         "List": [
           {
-            "Text": "// not read doc 1\n",
+            "Text": "// not read doc 1",
             "_Type": "Comment"
           }
         ],
@@ -47,7 +47,7 @@
       "Doc": {
         "List": [
           {
-            "Text": "/* not read doc 2 */\n",
+            "Text": "/* not read doc 2 */",
             "_Type": "Comment"
           }
         ],
@@ -89,7 +89,7 @@
       "Doc": {
         "List": [
           {
-            "Text": "/// doc\n",
+            "Text": "/// doc",
             "_Type": "Comment"
           }
         ],
@@ -131,7 +131,7 @@
       "Doc": {
         "List": [
           {
-            "Text": "/** doc */\n",
+            "Text": "/** doc */",
             "_Type": "Comment"
           }
         ],
@@ -173,7 +173,7 @@
       "Doc": {
         "List": [
           {
-            "Text": "/*! doc */\n",
+            "Text": "/*! doc */",
             "_Type": "Comment"
           }
         ],
@@ -215,11 +215,11 @@
       "Doc": {
         "List": [
           {
-            "Text": "/// doc 1\n",
+            "Text": "/// doc 1",
             "_Type": "Comment"
           },
           {
-            "Text": "/// doc 2\n",
+            "Text": "/// doc 2",
             "_Type": "Comment"
           }
         ],
@@ -261,11 +261,11 @@
       "Doc": {
         "List": [
           {
-            "Text": "/*! doc 1 */\n",
+            "Text": "/*! doc 1 */",
             "_Type": "Comment"
           },
           {
-            "Text": "/*! doc 2 */\n",
+            "Text": "/*! doc 2 */",
             "_Type": "Comment"
           }
         ],
@@ -307,11 +307,11 @@
       "Doc": {
         "List": [
           {
-            "Text": "/** doc 1 */\n",
+            "Text": "/** doc 1 */",
             "_Type": "Comment"
           },
           {
-            "Text": "/** doc 1 */\n",
+            "Text": "/** doc 1 */",
             "_Type": "Comment"
           }
         ],
@@ -353,19 +353,19 @@
       "Doc": {
         "List": [
           {
-            "Text": "/**\n",
+            "Text": "/**",
             "_Type": "Comment"
           },
           {
-            "Text": " * doc 1\n",
+            "Text": " * doc 1",
             "_Type": "Comment"
           },
           {
-            "Text": " * doc 2\n",
+            "Text": " * doc 2",
             "_Type": "Comment"
           },
           {
-            "Text": " */\n",
+            "Text": " */",
             "_Type": "Comment"
           }
         ],
@@ -423,7 +423,7 @@
               "Doc": {
                 "List": [
                   {
-                    "Text": "/// doc\n",
+                    "Text": "/// doc",
                     "_Type": "Comment"
                   }
                 ],
@@ -448,7 +448,7 @@
               "Comment": {
                 "List": [
                   {
-                    "Text": "///\u003c comment\n",
+                    "Text": "///\u003c comment",
                     "_Type": "Comment"
                   }
                 ],
@@ -474,7 +474,7 @@
               "Comment": {
                 "List": [
                   {
-                    "Text": "/*!\u003c comment */\n",
+                    "Text": "/*!\u003c comment */",
                     "_Type": "Comment"
                   }
                 ],
@@ -524,15 +524,15 @@
               "Doc": {
                 "List": [
                   {
-                    "Text": "/**\n",
+                    "Text": "/**",
                     "_Type": "Comment"
                   },
                   {
-                    "Text": "     * static field doc\n",
+                    "Text": "     * static field doc",
                     "_Type": "Comment"
                   },
                   {
-                    "Text": "     */\n",
+                    "Text": "     */",
                     "_Type": "Comment"
                   }
                 ],
@@ -557,7 +557,7 @@
               "Comment": {
                 "List": [
                   {
-                    "Text": "/*!\u003c static field comment */\n",
+                    "Text": "/*!\u003c static field comment */",
                     "_Type": "Comment"
                   }
                 ],
@@ -584,15 +584,15 @@
               "Doc": {
                 "List": [
                   {
-                    "Text": "/**\n",
+                    "Text": "/**",
                     "_Type": "Comment"
                   },
                   {
-                    "Text": "     * field doc\n",
+                    "Text": "     * field doc",
                     "_Type": "Comment"
                   },
                   {
-                    "Text": "     */\n",
+                    "Text": "     */",
                     "_Type": "Comment"
                   }
                 ],
@@ -617,7 +617,7 @@
               "Comment": {
                 "List": [
                   {
-                    "Text": "///\u003c field comment\n",
+                    "Text": "///\u003c field comment",
                     "_Type": "Comment"
                   }
                 ],
@@ -643,7 +643,7 @@
               "Comment": {
                 "List": [
                   {
-                    "Text": "/*!\u003c protected field comment */\n",
+                    "Text": "/*!\u003c protected field comment */",
                     "_Type": "Comment"
                   }
                 ],
@@ -672,15 +672,15 @@
             "Doc": {
               "List": [
                 {
-                  "Text": "/**\n",
+                  "Text": "/**",
                   "_Type": "Comment"
                 },
                 {
-                  "Text": "     * method doc\n",
+                  "Text": "     * method doc",
                   "_Type": "Comment"
                 },
                 {
-                  "Text": "     */\n",
+                  "Text": "     */",
                   "_Type": "Comment"
                 }
               ],
diff --git a/_xtool/internal/parser/testdata/typeof/expect.json b/_xtool/internal/parser/testdata/typeof/expect.json
index 542ca7d9..00053e90 100755
--- a/_xtool/internal/parser/testdata/typeof/expect.json
+++ b/_xtool/internal/parser/testdata/typeof/expect.json
@@ -5,7 +5,7 @@
       "Doc": {
         "List": [
           {
-            "Text": "// https://github.com/goplus/llcppg/issues/497\n",
+            "Text": "// https://github.com/goplus/llcppg/issues/497",
             "_Type": "Comment"
           }
         ],