diff --git a/Code/Day 1_Data Preprocessing.md b/Code/Day 1_Data Preprocessing.md
index 3508943..ea063eb 100644
--- a/Code/Day 1_Data Preprocessing.md	
+++ b/Code/Day 1_Data Preprocessing.md	
@@ -5,7 +5,8 @@
 </p>
 
 如图所示，通过6步完成数据预处理。
-此例用到的[数据](https://github.com/Avik-Jain/100-Days-Of-ML-Code/blob/master/datasets/Data.csv)。
+
+此例用到的[数据](https://github.com/Avik-Jain/100-Days-Of-ML-Code/blob/master/datasets/Data.csv)，[代码](https://github.com/MachineLearning100/100-Days-Of-ML-Code/blob/master/Code/Day%201_Data%20Prepocessing.py)。
 
 ## 第1步：导入库
 ```Python
@@ -49,4 +50,4 @@ from sklearn.preprocessing import StandardScaler
 sc_X = StandardScaler()
 X_train = sc_X.fit_transform(X_train)
 X_test = sc_X.fit_transform(X_test)
-```
\ No newline at end of file
+```