diff --git a/diy2.py b/diy2.py
new file mode 100644
index 0000000..d946717
--- /dev/null
+++ b/diy2.py
@@ -0,0 +1,20 @@
+username = "python"
+userpassword = "123456"
+i=3
+while i>0:
+    i-=1    
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name == username and password == userpassword:
+        print("登录成功!")
+        break
+    if name != username:
+        print("用户名错误!请重新输入")
+        continue
+    if password != userpassword:  
+        print("密码输入错误!请重新输入!") 
+        continue
+else:
+        print("什么!你居然不知道密码!请去我司官网充值会员")
+        exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file