diff --git a/Common.py b/Common.py
index ed05238..461fe20 100644
--- a/Common.py
+++ b/Common.py
@@ -108,7 +108,7 @@ def getTimeDelta(a, b):
 def _doClean(_force=False):
     global doCleanTime, _clean_flag
     _disk = psutil.disk_usage(".")
-    if _disk.percent > config["max"] or getTimeDelta(datetime.now(), doCleanTime) > config["exp"] * 86400 or _force:
+    if _disk.percent > config["max"] or _force:
         _clean_flag = True
         doCleanTime = datetime.now()
         appendOperation("执行配置的清理命令")