python-3.x - 我只想要函数的距离值

Question

我只想要函数的距离值，如果我打印working_odo，它会在while循环中驱动我。我只想要距离

def working_odo(): 
    last_state=IO.input(15)
    state_count=0
    while 1:
        current_state=IO.input(15)
        if(current_state!=last_state):
            state_count+=1
            #print(state_count)
            last_state=current_state
            distance = 0.001*state_count

这是编码器的覆盆子 gpio 代码

Answer 1

我不确定你是否正确，也许：

def working_odo(): 
   # YOUR implementation here
   while ... :
       if (current_state != ... :
           return distance # ?