c语言查表法 嵌入式C语言查表法在项目中的应用
Engineer-Bruce_Yang 2021-03-30 我要评论
嵌入式C实战项目开发技巧:对一个有规律的数组表进行位移操作的方法
就像下面的这个表
之前写过上面这个标题的一篇文章，讲的是以位移的方式去遍历表中的数据，效率非常高，但是，如果要实现一个乱序的流水灯或者跑马灯的话，思考一个这样的算法是不可取的，很费时间，也很费脑力，于是，今天就说一说查表法，如果在程序中运用查表法，不论多么复杂的程序，只要符合一张表，那都可以实现，非常简单，体力活而已，接下来看看下面这个程序，对上面这个进行操作吧。
#includehttps://m.qb5200.com/<stdio.h>
#includehttps://m.qb5200.com/<windows.h>
//这里的行可以自由写，这样就不受限制，想做出什么样的效果都可以。
inthttps://m.qb5200.com/array[][10]https://m.qb5200.com/=https://m.qb5200.com/{
https://m.qb5200.com/0x03,0x00,0x00,0x00,0x00,//第一列
https://m.qb5200.com/0x00,0x02,0x00,0x00,0x00,
https://m.qb5200.com/0x0C,0x00,0x00,0x00,0x00,//第二列
https://m.qb5200.com/0x00,0x04,0x00,0x00,0x00,
https://m.qb5200.com/0x10,0x00,0x00,0x00,0x00,//第三列
https://m.qb5200.com/0x00,0x08,0x00,0x00,0x00,
https://m.qb5200.com/0x60,0x00,0x00,0x00,0x00,//第四列
https://m.qb5200.com/0x00,0x10,0x00,0x00,0x00,
https://m.qb5200.com/0x80,0x01,0x00,0x00,0x00,//第五列
https://m.qb5200.com/0x00,0x20,0x00,0x00,0x00,
https://m.qb5200.com/0xAA,0x55,0x00,0x00,0xC0,//end
https://m.qb5200.com/0x00,0x00,0x00,0x00,0x00,
};
voidhttps://m.qb5200.com/to_Q112_cmd_designator_LED(inthttps://m.qb5200.com/*array)
{
https://m.qb5200.com/inthttps://m.qb5200.com/i;
https://m.qb5200.com/for(ihttps://m.qb5200.com/=https://m.qb5200.com/0;https://m.qb5200.com/ihttps://m.qb5200.com/<https://m.qb5200.com/10;https://m.qb5200.com/i++)
https://m.qb5200.com/{
https://m.qb5200.com/printf("https://m.qb5200.com/%3dhttps://m.qb5200.com/",https://m.qb5200.com/*(array+i));https://m.qb5200.com/
https://m.qb5200.com/}
https://m.qb5200.com/printf("\n");
}
voidhttps://m.qb5200.com/delay_500ms(void)
{
https://m.qb5200.com/Sleep(500);
}
inthttps://m.qb5200.com/main(void)
{
https://m.qb5200.com/inthttps://m.qb5200.com/i,j;
https://m.qb5200.com/inthttps://m.qb5200.com/tick;
https://m.qb5200.com/inthttps://m.qb5200.com/counthttps://m.qb5200.com/=https://m.qb5200.com/0;
https://m.qb5200.com/while(array[count][0]https://m.qb5200.com/!=https://m.qb5200.com/0xAAhttps://m.qb5200.com/||https://m.qb5200.com/array[count][1]https://m.qb5200.com/!=https://m.qb5200.com/0x55)//如果当数组第count行第0列等于0xAA,或者第count行第1列等于0x55时，那么就退出，否则就循环执行遍历数据https://m.qb5200.com/
https://m.qb5200.com/{https://m.qb5200.com/
https://m.qb5200.com/to_Q112_cmd_designator_LED((inthttps://m.qb5200.com/*)(&array[0][0]+count*10)https://m.qb5200.com/);//以首元素每次向后偏移10个字节
https://m.qb5200.com/delay_500ms();
https://m.qb5200.com/count++;
https://m.qb5200.com/}
https://m.qb5200.com/returnhttps://m.qb5200.com/0;
}
运行结果:
3https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 2https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0
https://m.qb5200.com/12https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 4https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0
https://m.qb5200.com/16https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 8https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0
https://m.qb5200.com/96https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/16https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0
128https://m.qb5200.com/ https://m.qb5200.com/ 1https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/32https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0https://m.qb5200.com/ https://m.qb5200.com/ 0
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，谢谢大家对的支持。如果你想了解更多相关内容请查看下面相关链接
