求助VHDL 8路抢答器编译之后出现错误类似为:Error: Net "outadd2[7]", which fans out to "outadd[7]", cannot be assigned more than one valueError: Net is fed by "desplay:u2|outadd[7]"我百度了一下,发现说是一个端口不可以在PORT MAP中N次作为输出赋值。 。但是解决办法我没有看懂,有大佬可以教我一下吗?QAQ