diff --git a/util/data_util.py b/util/data_util.py
index 4bdcaa2..198da0e 100644
--- a/util/data_util.py
+++ b/util/data_util.py
@@ -7,6 +7,8 @@ from util import util
 
 # 处理金额类数据
 def handle_decimal(string):
+    if not string:
+        return ""
     string = re.sub(r'[^0-9.]', '', string)
     if not string:
         return ""