diff --git a/function.py b/function.py
index 0accf61..63f15df 100644
--- a/function.py
+++ b/function.py
@@ -37,6 +37,13 @@ name = "吴俊煯"
 """
 
 
+def euclidean_distance(inX, dataSetRow):  
+    """  
+    计算欧氏距离  
+    """  
+    return np.sqrt(np.sum((inX - dataSetRow) ** 2))
+
+
 # 这里写自己的代码实现
 def classify0(inX, dataSet, labels,k=4):
     """