save project

diy2.py

+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!")
+    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== username:
+           print('登陆成功')
            break
-    elif name!=username:
-        print('用户名不存在')
-    else :    
+        if name !=username:
+            print("用户名错误")
+            continue
+        if password！= username:
         print('密码输入错误')        
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
+    else:
+        print ("你的账户已被锁定，请一个小时后再来")
+        exit()
+print("欢迎来到贝尔编程")
\ No newline at end of file