diff --git a/MindSpore/src/step2/step2.py b/MindSpore/src/step2/step2.py
index 332b721..98a167d 100644
--- a/MindSpore/src/step2/step2.py
+++ b/MindSpore/src/step2/step2.py
@@ -12,19 +12,20 @@ if __name__ == "__main__":
     epoch_size = 1
     mnist_path = "./MNIST_Data"
     # 请在此添加代码完成本关任务
-    # **********Begin*********#
-    ##提示：补全损失函数的定义
+    #********** Begin *********#
+    ## 提示：补全损失函数的定义
 
-    # **********End**********#
+    #********** End **********#
     repeat_size = epoch_size
     # create the network
     network = LeNet5()
     # define the optimizer
     # 请在此添加代码完成本关任务
-    # **********Begin*********#
-    ##提示：补全优化器的定义
+    #********** Begin *********#
+    ## 提示：补全优化器的定义
 
-    # **********End**********#
+
+    #********** End **********#
 
     # save the network model and parameters for subsequence fine-tuning
     ckpoint_cb = ModelCheckpoint(prefix="checkpoint_lenet", config=config_ck)