save project

diy2.py

@@ -6,10 +6,8 @@ while True:
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登录成功!")
         print("登录成功!")
         break
         break
-    print("用户名和密码错误!请重新输入")
-    if name != username:
+    elif name != username:
         print("用户名错误")
         print("用户名错误")
-        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!")
\ No newline at end of file