diff --git a/build-tools/capi_parser/src/coreImpl/diff/diff_file.py b/build-tools/capi_parser/src/coreImpl/diff/diff_file.py
index 2cd9b1f54103ef79c33ae61af6a803c3ea53b10b..e70a4a668d23d4b7817d920179d0ca98accbe0b5 100644
--- a/build-tools/capi_parser/src/coreImpl/diff/diff_file.py
+++ b/build-tools/capi_parser/src/coreImpl/diff/diff_file.py
@@ -16,6 +16,7 @@
 import filecmp
 import json
 import os
+import stat
 from collections import OrderedDict
 import openpyxl as op
 from coreImpl.parser.parser import parser_include_ast
@@ -55,9 +56,9 @@ def generate_excel(result_info_list):
     ws = wb['Sheet']
     ws.append(['api名称', '所在行', '所在列', '所在文件', '节点类型',
                '变更类型', '变更信息', '旧版节点内容', '新版节点内容', '兼容'])
-    for i in range(len(data)):
-        d = data[i][0], data[i][1], data[i][2], data[i][3], data[i][4],\
-            data[i][5], data[i][6], data[i][7], data[i][8], data[i][9]
+    for title in data:
+        d = title[0], title[1], title[2], title[3], title[4],\
+            title[5], title[6], title[7], title[8], title[9]
         ws.append(d)
     wb.save('diff.xlsx')
 
@@ -77,13 +78,14 @@ def result_to_json(result_info_list):
     result_json = []
     for diff_info in result_info_list:
         result_json.append(OutputJson(diff_info))
-    return json.dumps(result_json, default=lambda obj: obj.__dict__, indent=4)
+    return json.dumps(result_json, default=lambda obj: obj.__dict__, indent=4, ensure_ascii=False)
 
 
 def write_in_txt(check_result, output_path):
-    with open(output_path, 'w', encoding='utf-8') as fs:
-        fs.write(check_result)
-        fs.close()
+    modes = stat.S_IRWXO | stat.S_IRWXG | stat.S_IRWXU
+    fd = os.open(output_path, os.O_WRONLY | os.O_CREAT, mode=modes)
+    os.write(fd, check_result.encode())
+    os.close(fd)
 
 
 def do_diff(old_dir, new_dir):
diff --git a/build-tools/capi_parser/src/coreImpl/diff/diff_processor_permission.py b/build-tools/capi_parser/src/coreImpl/diff/diff_processor_permission.py
index 4e729237c331bfbf72141ee46cbc78a23cd4a70a..ff1635340c07762dea7147a4c6d7e40effb34f49 100644
--- a/build-tools/capi_parser/src/coreImpl/diff/diff_processor_permission.py
+++ b/build-tools/capi_parser/src/coreImpl/diff/diff_processor_permission.py
@@ -62,6 +62,7 @@ class DiffProcessorPermission:
             string = re.sub(re.compile(self.splitchar[char]['splitchar']), self.splitchar[char]['transferchar'], string)
         return string
 
+    @staticmethod
     def get_bool_in_list(self, number_list, bin_len):
         state_list = [bin(i) for i in number_list]
         state_list = [x[2:] for x in state_list]
@@ -79,6 +80,7 @@ class DiffProcessorPermission:
             state_value[state_index] = eval(modify_string)
         return state_value
 
+    @staticmethod
     def process_value(self, state_value):
         calculate = CalculateValue()
         for state in state_value:
@@ -99,10 +101,13 @@ class DiffProcessorPermission:
 
     def calculate_paradigm_up(self, old_str, new_str, falg_bool=True):
         char = ''
-        if falg_bool:
-            char = self.splitchar['LE']['splitchar']
-        else:
-            char = self.splitchar['RE']['splitchar']
+        try:
+            if falg_bool:
+                char = self.splitchar['LE']['splitchar']
+            else:
+                char = self.splitchar['RE']['splitchar']
+        except KeyError:
+            print('An error occurred. The specified key does not exist.')
         merge_str = f'({old_str}) {char} ({new_str})'
         return self.calculate_paradigm(merge_str)