diff --git a/pricing/pricing.py b/pricing/pricing.py
index 713ee7c..7e02ef9 100644
--- a/pricing/pricing.py
+++ b/pricing/pricing.py
@@ -124,7 +124,7 @@ def check_value(field, spec_value, data_value):
 			raise Exception(e)
 
 		if (arr[0] is None or arr[-1] is None) and field.type == 'str':
-			e = f'字符串类型between方法的两个值任何一个都不能为空')
+			e = f'字符串类型between方法的两个值任何一个都不能为空'
 			exception(e)
 			raise e
 		else: