software serial

in Arduino uno the real (RXD,TXD) is The lines(0,1) The Question is: can i define The (RXD,TXD)of Software serial on same lines of Hardware uart: can i write: SoftwareSerial mySerial(0, 1); // RX, TX?????... Thanks 4 u...

what will you achieve from it? Why cant you use 'Serial' instead, which is more efficient.

in Arduino uno the real (RXD,TXD) is The lines(0,1) The Question is: can i define The (RXD,TXD)of Software serial on same lines of Hardware uart: can i write: SoftwareSerial mySerial(0, 1); // RX, TX?????...

You can do software serial on the hardware serial pins, but, why would you?

If your question was really "Can I do software serial on the hardware serial pins while also doing hardware serial?", the answer is quite different. That answer is "of course not, don't be silly!"