diff --git a/djangoblog/whoosh_cn_backend.py b/djangoblog/whoosh_cn_backend.py
index 04e3f7fd..b885613f 100644
--- a/djangoblog/whoosh_cn_backend.py
+++ b/djangoblog/whoosh_cn_backend.py
@@ -40,17 +40,17 @@ except ImportError:
     raise MissingDependency(
         "The 'whoosh' backend requires the installation of 'Whoosh'. Please refer to the documentation.")
 
-# Handle minimum requirement.
+#姜雨菲： 检查Whoosh版本，要求2.5.0及以上
 if not hasattr(whoosh, '__version__') or whoosh.__version__ < (2, 5, 0):
     raise MissingDependency(
         "The 'whoosh' backend requires version 2.5.0 or greater.")
 
-# Bubble up the correct error.
-
+#姜雨菲：日期时间格式正则表达式，用于解析Whoosh返回的日期时间字符串
 DATETIME_REGEX = re.compile(
     '^(?P<year>\d{4})-(?P<month>\d{2})-(?P<day>\d{2})T(?P<hour>\d{2}):(?P<minute>\d{2}):(?P<second>\d{2})(\.\d{3,6}Z?)?$')
 LOCALS = threading.local()
-LOCALS.RAM_STORE = None
+LOCALS.RAM_STORE = None  # 线程本地存储，用于内存存储模式
+
 
 
 class WhooshHtmlFormatter(HtmlFormatter):