diff --git a/function.py b/function.py
index 55a5034..5764230 100644
--- a/function.py
+++ b/function.py
@@ -39,7 +39,7 @@ name = "吴俊煯"
 
 
 # 这里写自己的代码实现
-def classify0(inX, dataSet, labels, k=100, cov_inv=None):  
+def classify0(inX, dataSet, labels, k=60, cov_inv=None):  
     """  
     KNN 分类算法，使用马氏距离。  
   
@@ -53,8 +53,7 @@ def classify0(inX, dataSet, labels, k=100, cov_inv=None):
     Returns:  
     - int: 预测的分类标签。  
     """  
-    if cov_inv is None:  
-        # 计算训练数据的协方差矩阵并求逆  
+    if cov_inv is None:    
         cov_matrix = np.cov(dataSet.T)  
         cov_inv = inv(cov_matrix)    
     differences = dataSet - inX