diff --git a/src/python/tools/DecisionTree.py b/src/python/tools/DecisionTree_getInfoGain.py
similarity index 98%
rename from src/python/tools/DecisionTree.py
rename to src/python/tools/DecisionTree_getInfoGain.py
index a2974d91..316b6fe5 100644
--- a/src/python/tools/DecisionTree.py
+++ b/src/python/tools/DecisionTree_getInfoGain.py
@@ -120,5 +120,5 @@ if __name__ == '__main__':
     infoGain1 = getFeatureShannonEnt(dataSet1, labels)
     infoGain2 = getFeatureShannonEnt(dataSet2, labels)
     infoGain3 = getFeatureShannonEnt(dataSet3, labels)
-    print '香农熵: \n\t%s, \n\t%s, \n\t%s' % (infoGain1, infoGain2, infoGain3)
+    print '信息增益: \n\t%s, \n\t%s, \n\t%s' % (infoGain1, infoGain2, infoGain3)