端口定义RB0-RB3输入,RB4-RB7输出() A: TRISB=0XFF B: TRISB=0X03 C: TRISB=0X0F D: TRISB=0X00
端口定义RB0-RB3输入,RB4-RB7输出() A: TRISB=0XFF B: TRISB=0X03 C: TRISB=0X0F D: TRISB=0X00
端口定义RB0-RB3做输入,RB4-RB7做输出口() A: TRISB=0XFF B: TRISB=0X03 C: TRISB=0X0F D: TRISB=0X00
端口定义RB0-RB3做输入,RB4-RB7做输出口() A: TRISB=0XFF B: TRISB=0X03 C: TRISB=0X0F D: TRISB=0X00
如果把RB端口接8个按键输出,接到8个led灯,使得led等全亮,则初始化程序为() A: TRISB=0XFF PORTB=0X00 B: TRISB=0X00 PORTB=0X00 C: TRISB=0X00 PORTB=0X00 D: TRISB=0X00 PORTB=0XFF
如果把RB端口接8个按键输出,接到8个led灯,使得led等全亮,则初始化程序为() A: TRISB=0XFF PORTB=0X00 B: TRISB=0X00 PORTB=0X00 C: TRISB=0X00 PORTB=0X00 D: TRISB=0X00 PORTB=0XFF
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