二、程序阅读:LCD显示器与单片机连接:P3.5、P3.6、P3.7分别连接LCD的E、RW和RS端,P1口为LCD的数据端,请给下面空格对应的程序添加注释 sbit LCM_E=P3^5;//1 sbit LCM_RW=P3^6; sbit LCM_RS=P3^7; #define LCM_Data P1//2 void LCM_WriteData(uchar WDLCM) { LCM_ReadStatus();//3 LCM_Data = WDLCM; // 4 LCM_RS = 1; // 5 LCM_RW = 0; // 6 LCM_E = 0; // 7 LCM_E = 0;//8 LCM_E = 1; // 9 }