用C51写个代码,使一个七段数码管始终显示03.08.12.并且cpu是AT89C51.

#include <regx52.h>

// 数码管共阳极接口连接
#define LED_PORT P0

// 数码管段选控制码
unsigned char LED_CODE[] = {
    0xC0,  // 0
    0xF9,  // 1
    0xA4,  // 2
    0xB0,  // 3
    0x99,  // 4
    0x92,  // 5
    0x82,  // 6
    0xF8,  // 7
    0x80,  // 8
    0x90   // 9
};

void delay(unsigned int t) {
    unsigned int i, j;
    for (i = t; i > 0; i--)
        for (j = 110; j > 0; j--);
}

void main() {
    unsigned char i = 0;
    while (1) {
        // 显示03.08.12
        LED_PORT = LED_CODE[0];
        delay(5);
        LED_PORT = LED_CODE[0];
        delay(5);
        LED_PORT = LED_CODE[1];
        delay(5);
        LED_PORT = LED_CODE[0];
        delay(5);
        LED_PORT = LED_CODE[8];
        delay(5);
        LED_PORT = LED_CODE[0];
        delay(5);
        LED_PORT = LED_CODE[1];
        delay(5);
        LED_PORT = LED_CODE[2];
        delay(5);
    }
}