接线方法P0.00.10.20.3ABCDsbitRData=P2^0;//RData=P2^0,GData=P2^1sbitGData=P2^1;sbitL_CLK=P2^2;sbitL_STB=P2^3;sbitR_OE=P2^4;//REN=P2^4,GEN=P2^5sbitG_OE=P2^5;sbitData=P2^1;//RData=P2^0,GData=P2^1sbitOE=P2^6;//REN=P2^5,GEN=P2^6DS18B20=P1^0;//--定义通信端口D