diff --git a/dcs/tests/database.py b/dcs/tests/database.py
index 29d4b53..cb15bf4 100644
--- a/dcs/tests/database.py
+++ b/dcs/tests/database.py
@@ -63,6 +63,18 @@ def login():
         print(e)
 
 
+def cancel():
+    try:
+        conn = mysql_conn()
+        cur = conn.cursor()
+        select_sql = f'delete from sh_users where username = "{u_name}"'
+        cur.execute(select_sql)
+        cur.close()
+        conn.close()
+    except Exception as e:
+        print(e)
+
+
 if __name__ == '__main__':
     u_name = input('请输入用户名')
     u_pwd = input('请输入密码')