第一次写博客这玩意，不太会，算了，直接粘代码吧。
1 #include <reg52.h> 2 #include <intrins.h> //头文件，将会用到循环右移 3 //宏定义 4 #define uchar unsigned char 5 #define uint unsigned int 6 //位、变量声明 7 sbit led1 = P1^0; 8 sbit dula = P2^6; 9 sbit wela = P2^7;10 uchar counter_ms, counter_s, led_flow = 0xfe;11 uchar code digitron_data[] = { 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f };12 //延时函数13 void delay(uint z)14 {15 uint x, y;16 for (x = 0; x < z; x++)17 for (y = 0; y < 114; y++);18 }19 //流水灯函数 20 void display_led ()21 {22 while(1) {23 led_flow = _cror_(led_flow, 1);24 P1 = led_flow;25 delay(500);//调用延时函数26 }27 }28 //数码管函数29 void display_digitron(uchar i)30 {31 uchar tens, ones;32 tens = i / 10;//求模得到十位33 ones = i % 10;//求余得到个位34 35 P0 = 0xff;//使所有数码管熄灭36 wela = 1;37 P0 = 0xfe;38 wela = 0;39 40 dula = 1;41 P0 = digitron_data[tens];42 dula = 0;43 delay(1);44 45 P0 = 0xff;46 wela = 1;47 P0 = 0xfd;48 wela = 0;49 50 dula = 1;51 P0 = digitron_data[ones];52 dula = 0;53 delay(1);54 }55 //定时器初始化函数56 void timer_init()57 {58 TMOD = 0x10;//TMOD的地址是0x89,不能被8整除，只能对字节操作，不能位操作59 TH1 = 0x4c;60 TL1 = 0x00;61 TR1 = 1; //TCON的地址是0x88,可以对位操作62 }63 //主函数main64 void main()65 {66 timer_init();//调用定时器初始化函数67 while(1) {68 if (TF1 == 1) {69 TF1 = 0;70 TH1 = 0x4c;71 TL1 = 0x00;72 counter_ms++; 73 }74 if (counter_ms == 20) {//counter_ms累加20次是1秒75 counter_ms = 0;76 counter_s++;77 }78 if (counter_s ==60) {//counter_s累加60次是1分钟79 wela = 1;80 P0 = 0xff;81 wela = 0;82 TR1 = 0;83 display_led();//调用流水灯函数 84 /*85 led_flow = _cror_(led_flow, 1);86 P1 = led_flow;87 delay(500);88 */89 } else {90 display_digitron(counter_s);//调用数码管函数91 }92 }93 }
而它的种子，就是它生命的延续，继续承受风，
