diff --git a/diy2.py b/diy2.py
new file mode 100644
index 0000000..dec9bd8
--- /dev/null
+++ b/diy2.py
@@ -0,0 +1,28 @@
+i=3
+username = "1w"
+userpassword = "12w"
+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
+        elif name != username :
+            print("账号不对")
+        else :
+            print("密码不对")
+    else :
+        print("你的账户已被锁定，请带身份证来我司解锁")
+        exit()
+print("欢迎")
+
+
+
+
+
+
+
+
+