【简答题】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 }