diff --git a/11_sql/main2.py b/11_sql/main2.py
index 8ad4fb49ab8c4c9774d27d6a175e3c497e337d9e..eea8b19b2a793dc79ada079a87d14b447cd52be7 100644
--- a/11_sql/main2.py
+++ b/11_sql/main2.py
@@ -24,4 +24,4 @@ for r in result:
 
 # 关闭MySQL链接对象
 conn.close()
-f.close()
+f.close()
\ No newline at end of file
diff --git "a/13_\351\253\230\347\272\247\346\212\200\345\267\247/05_\345\244\232\347\272\277\347\250\213\347\274\226\347\250\213.py" "b/13_\351\253\230\347\272\247\346\212\200\345\267\247/05_\345\244\232\347\272\277\347\250\213\347\274\226\347\250\213.py"
index 1cf80a15a92674a1733e35329ca9609af95fe0ca..6ff58d7b7283936dc8c5fc3d27d85e3d31cb8349 100644
--- "a/13_\351\253\230\347\272\247\346\212\200\345\267\247/05_\345\244\232\347\272\277\347\250\213\347\274\226\347\250\213.py"
+++ "b/13_\351\253\230\347\272\247\346\212\200\345\267\247/05_\345\244\232\347\272\277\347\250\213\347\274\226\347\250\213.py"
@@ -4,12 +4,12 @@
 import time
 import threading
 
+
 def sing(msg):
     print(msg)
     time.sleep(1)
 
 
-
 def dance(msg):
     print(msg)
     time.sleep(1)
@@ -17,7 +17,7 @@ def dance(msg):
 
 if __name__ == '__main__':
     # 创建一个唱歌的线程
-    sing_thread = threading.Thread(target=sing, args=("我要唱歌 哈哈哈", ))
+    sing_thread = threading.Thread(target=sing, args=("我要唱歌 哈哈哈",))
     # 创建一个跳舞的线程
     dance_thread = threading.Thread(target=dance, kwargs={"msg": "我在跳舞哦 啦啦啦"})