save project

diy2.py

@@ -6,10 +6,10 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    if name != username:
+    elif name != username:
         print("用户名错误，再错就别进来了")
         continue
-    if  password != userpassword:
+    else:
         print("密码错误，再错就别进来了")