diff --git a/diy2.py b/diy2.py
new file mode 100644
index 0000000..d33374a
--- /dev/null
+++ b/diy2.py
@@ -0,0 +1,19 @@
+i = 3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i -= 1
+        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("密码输入有误,请重新输入!")
+    else:
+        print("你的账户已被锁定，请一个小时以后再来")
+print("欢迎来到贝尔编程!")
\ No newline at end of file