save project

diy2.py

@@ -8,9 +8,9 @@ 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
-    if name != username:
+    elif name != username:
         print("账号不存在,请重输入")
         print("账号不存在,请重输入")
         continue
         continue
-    if password != userpassword:
+    else:
         print("密码错误,请重输入")
         print("密码错误,请重输入")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file