diff --git a/input/03.DecisionTree/data.txt b/input/3.DecisionTree/data.txt
similarity index 100%
rename from input/03.DecisionTree/data.txt
rename to input/3.DecisionTree/data.txt
diff --git a/output/03.DecisionTree/tree.pdf b/output/03.DecisionTree/tree.pdf
deleted file mode 100644
index 3576d894..00000000
Binary files a/output/03.DecisionTree/tree.pdf and /dev/null differ
diff --git a/output/3.DecisionTree/tree.pdf b/output/3.DecisionTree/tree.pdf
new file mode 100644
index 00000000..3c1ec20a
Binary files /dev/null and b/output/3.DecisionTree/tree.pdf differ
diff --git a/src/python/3.DecisionTree/DTSklearn.py b/src/python/3.DecisionTree/DTSklearn.py
index f1c7d143..dd7e506f 100644
--- a/src/python/3.DecisionTree/DTSklearn.py
+++ b/src/python/3.DecisionTree/DTSklearn.py
@@ -12,7 +12,7 @@ def createDataSet():
     ''' 数据读入 '''
     data = []
     labels = []
-    with open("input/03.DecisionTree/data.txt") as ifile:
+    with open("input/3.DecisionTree/data.txt") as ifile:
         for line in ifile:
             # 特征： 身高 体重   label： 胖瘦
             tokens = line.strip().split(' ')
@@ -93,7 +93,7 @@ def show_pdf(clf):
     dot_data = StringIO()
     tree.export_graphviz(clf, out_file=dot_data)
     graph = pydotplus.graph_from_dot_data(dot_data.getvalue())
-    graph.write_pdf("output/03.DecisionTree/tree.pdf")
+    graph.write_pdf("output/3.DecisionTree/tree.pdf")
 
     # from IPython.display import Image
     # Image(graph.create_png())
diff --git a/src/python/3.DecisionTree/decisionTreePlot.pyc b/src/python/3.DecisionTree/decisionTreePlot.pyc
new file mode 100644
index 00000000..826e38d7
Binary files /dev/null and b/src/python/3.DecisionTree/decisionTreePlot.pyc differ