请问高手下面这个程序 key的值有那些啊？我是想得到的key的值是（0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80）d但现在不是这样的要怎么该啊？
int read_key(void)
{
      unsigned char i = 0;
    unsigned char a = 1;
    unsigned char key = 0;
    unsignde char m = 1;
    delayNs(10);
      for(i=0;i<8;i++)
      {
      
        if(unsignde char m  == 1)
          {
            key = a;
          }
        
        a <<= 1;
    }
    return key;
}

谢谢那个地方是我打错了 应该都是 unsigned char m

谢谢那个地方是我打错了 应该都是 unsigned char m

谢谢你  确实是这样 谢了