diff --git a/core/language.py b/core/language.py
index 78dd88b..99bc080 100644
--- a/core/language.py
+++ b/core/language.py
@@ -10,6 +10,10 @@ import json
 
 
 def Language():
+    """
+    读取配置文件中的语言选项并返回相对因的语言文件的读取结果
+    :return:
+    """
     with open('./config.yml', 'r', encoding='utf-8') as lang:
         config = YAML().load(lang.read())
         language_sel = config['client-settings']['language']
diff --git a/core/read_config.py b/core/read_config.py
index 62d38f6..d503d7b 100644
--- a/core/read_config.py
+++ b/core/read_config.py
@@ -10,10 +10,11 @@ from ruamel.yaml import YAML
 
 def read_config():
     """
-
+    读取配置文件并返回读取到的内容同
     :return: mail-settings, request-settings, client-settings, only-view-settings --> 0, 1, 2, 3
     """
-    with open('./config.yml', 'r') as conf:
+    config_file = 'config.yml'
+    with open(f'./{config_file}', 'r') as conf:
         config = YAML().load(conf.read())
         mail_settings = config['mail-settings']
         request_settings = config['request-settings']
diff --git a/core/read_excel.py b/core/read_excel.py
index 252f889..c499c26 100644
--- a/core/read_excel.py
+++ b/core/read_excel.py
@@ -12,7 +12,7 @@ from core.language import Language
 
 def read_excel(kw: str):
     """
-    Read xlsx file and return searched results
+    读取china_city_list.xlsx并搜索匹配关键字的结果并输出到终端
     :param kw: keyword
     :return: city_list
     """
diff --git a/core/sendmail.py b/core/sendmail.py
index 15be69f..a3086f1 100644
--- a/core/sendmail.py
+++ b/core/sendmail.py
@@ -39,6 +39,10 @@ class Mail:
             self.smtp = smtplib.SMTP(self.server, self.port)  # 登录邮箱服务器 不使用SSL连接
 
     def dev_version(self):
+        """
+        开发者版本
+        :return:
+        """
         dev_weather = WeatherInfo().dev_version()
         dates = dev_weather[0]
         day_weathers = dev_weather[1]
@@ -203,6 +207,10 @@ class Mail:
             sys.exit(1)
 
     def free_version(self):
+        """
+        免费版本
+        :return:
+        """
         free_weather = WeatherInfo().free_version()
         dates = free_weather[0]
         day_weathers = free_weather[1]
@@ -342,6 +350,10 @@ class Mail:
             sys.exit(1)
 
     def warning_(self):
+        """
+        自然灾害预警
+        :return:
+        """
         info = WeatherInfo().warning_()
         release_time = info[0]
         title = info[1]