diff --git a/diy2.py b/diy2.py
new file mode 100644
index 0000000..dd48366
--- /dev/null
+++ b/diy2.py
@@ -0,0 +1,13 @@
+username = "python"
+userpassword = "123456"
+while True:
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name == username and password == userpassword:
+        break
+    if name!=username:
+        print("用户名不存在，请重新输入!")
+    if password!=userpassword:
+        print("密码不存在，请重新输入!")
+print("登录成功!")
+print("欢迎来到贝尔编程!")
\ No newline at end of file