我刚安装quartus6.1,弄完了工程后,进行vhdl编译时，总是提醒有两个警告，同样的代码在别人那可以使用，这两个警告是： Warning: No exact pin location assignment(s) for 4 pins of 4 total pins Warning: The Reserve All Unused Pins setting has not been specified, and will default to \'As output driving ground\'.
