diff --git a/function.py b/function.py
index ade67d3..07ecb5b 100644
--- a/function.py
+++ b/function.py
@@ -63,7 +63,7 @@ def classify0(inX, dataSet, labels, k=5):
 
     # **步骤2计算欧氏距离**  
     diffMat = normDataSet - normInX  
-    distances = np.sqrt(np.sum(diffMat ** 2, axis=1))  
+    distances = np.sum(np.abs(diffMat), axis=1) 
 
     # **步骤3按距离排序**  
     sortedDistIndices = distances.argsort()