单片机编程错误答:0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};void delay(u16 i){while(i--);}void KeyDown(){u8 a=0;GPIO_KEY=0x0f;if(GPIO_KEY!=0x0f){delay(1000);if(GPIO_KEY!=0x0f){GPIO_KEY=0x0f;switch(GPIO_KEY){case(0x07):KeyValue=0;break;case(...