4*4矩阵键盘按键显示按键值

				SET C51INC=D:\Down\Keil\C51\INC\Atmel\;D:\Down\Keil\C51\INC\
				SET C51LIB=D:\Down\Keil\C51\LIB
				SET CPU_TYPE=AT89C51
				SET CPU_VENDOR=Atmel
				SET UV2_TARGET=Target 1
				SET CPU_XTAL=0x016E3600
				D:\Down\Keil\C51\BIN\C51.EXE @Text1.__i
				D:\Down\Keil\C51\BIN\BL51.EXE @tanlin.lnp
				"D:\Down\Keil\C51\BIN\OH51.EXE" "tanlin"