diff --git a/diy2.py b/diy2.py
index 76ba2bb..34b5081 100644
--- a/diy2.py
+++ b/diy2.py
@@ -1,9 +1,20 @@
+i=3
 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:
-        print("登录成功!")
-    print("用户名和密码错误!请重新输入")
+    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("用户名和密码错误!请重新输入")
+            continue
+        if password != userpassword:
+            print("用户名和密码错误!请重新输入")
+    else:
+        print("你的账户已被锁定，请一个小时以后再来") 
+        exit()    
 print("欢迎来到贝尔编程!")
\ No newline at end of file