diff --git a/source/constants.py b/source/constants.py
index 84ac369..b00903a 100755
--- a/source/constants.py
+++ b/source/constants.py
@@ -639,4 +639,4 @@ CHOOSE = 'choose'
 PLAY = 'play'
 
 # 无穷大常量
-INF = float('inf')
+INF = 1e1024    # 等价于float("inf")