7_1.c

51事例原代码 事例多多 应该对初学者很有用

//使数码管从0到9递增显示，每个字停留一定的时间，程序如下：

#include <reg51.h>
unsigned char code led_segment_code[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,							  	0x90};
unsigned char i;
unsigned int n;

main()
{
do
	{
	for (i=0;i<=9;i++)
		{
		P1= led_segment_code[i];	//输出段码
		for (n=0;n<=3000;n++)		//延时
			;
		}
	}
while(1);
}