给你一个思路
//按键bdata,加快处理速度
uchar bdata KEY0 _at_ 0x21;
uchar bdata KEY1 _at_ 0x22;
sbit run_key=KEY0^0;
sbit stop_key=KEY0^1;
sbit tea_out_key=KEY0^2;
sbit tea_oil_key=KEY0^3;
sbit pause_key=KEY0^4;
sbit heat_key=KEY0^5;
sbit speed_inc_key=KEY0^6;
sbit speed_dec_key=KEY0^7;
sbit temp_inc_key=KEY1^0;
sbit temp_dec_key=KEY1^1;
sbit weight_inc_key=KEY1^2;
sbit weight_dec_key=KEY1^3;
sbit turns_inc_key=KEY1^4;
sbit turns_dec_key=KEY1^5;
sbit presure_inc_key=KEY1^6;
sbit presure_dec_key=KEY1^7;
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