arduino的引脚是已经定义了的。如，我在51上模拟arduino的方式写的就是0是P00，27就是P27。然后用digitalWrite（0，HIGH）方法来让P00引脚置1。因为sbit类型的引脚位定义是不能作为参数传递的。(Arduino pins is already defined. For example, I wrote on the 51 of the method of simulation arduino is 0 is P00, 27 is P27. Then use d