save project

sb.py

@@ -5,12 +5,10 @@ while True:
     abb = input("输入你的密码")
     abb = input("输入你的密码")
     if name == username and userpassword == abb:
     if name == username and userpassword == abb:
             print("登陆成功")
             print("登陆成功")
-            break
-    print("用户名和密码错误！请重新输入")  
-    if name!=username:
+            break 
+    elif name!=username:
         print("用户名错误！请重新输入") 
         print("用户名错误！请重新输入") 
-        continue
-    if  password !=userpassword:
+    else:
         print("密码错误")
         print("密码错误")
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")