serch black line.c

来自「全国电子大赛智能小车赛题」· C语言 代码 · 共 32 行

#include<reg51.h>
#define  uint  unsigned int
#define  uchar	unsigned char
void main()
{
	while(1)
	{
		uchar a;
		
		switch(0x07&P0)
		{
			case 0x01:turnrightl();
				break;
			case 0x02:goon();
				break;
			case 0x04:turnleftl();
				break;
			case 0x00:
			{
				if(a<<0x02)turnright();
				else turnleft();
			}
				break;
			default:goon();
				break;		
		}
		a=0x07&P0;
		
	}

}