save project

diy2.py

@@ -2,20 +2,21 @@ username = "python"
 userpassword = "123456"
 i = 3
 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 username != name:
+    elif username != name:
         print("用户名不存在")
-        continue
-    if  userpassword !=password:
+    else:
         print("密码错误")
-print("欢迎来到贝尔编程!")
-
-
-
+else:
+    print("锁定")
+    exit()
 
 
 
+print("欢迎来到编程世界")
\ No newline at end of file