”/引脚分配
int PinA_right= 2; //interrupt 0
int PinA_left= 3; //interrupt 1
int E_left =5;//ENA
int M_left =4;
int M_right =7;
int E_right =6; //ENB
/*int PinA_left = 2; //中断0
int PinA_right = 3; //中断1
int M_left = 6;
int M_left2 = 7;
int E_left = 10; //ENA
int M_right = 8;
int M_right2= 9;
int E_right = 11; //ENB*/“能解释一下引脚的具体定义吗?有点看不明白!