练习6矩阵键盘控制LCD1602\test
........................\test.c
........................\test.hex
........................\test.lnp
........................\test.LST
........................\test.M51
........................\test.OBJ
........................\test.plg
........................\test.uvopt
........................\test.uvproj
........................\test_uvopt.bak
........................\test_uvproj.bak
练习6矩阵键盘控制LCD1602