C8051F530A的端口设置程序，包括端*叉设置，并演示如何通过端口设置控制发光二极管-C8051F530A port setting procedures, including the port cross-set, and shows how to control the light-emitting diode through the port settings

this c code for setting port2 as input and port1 as output. It reads port2 and sets port1 similarly.-this is c code for setting port2 as input and port1 as output. It reads port2 and sets port1 similarly.