51单片机数码管void

void Delay_showNumber(unsigned int ms){
	unsigned char i, j;
	while(--ms){
		i = 2;
		j = 199;
		do
		{
			while (--j);
		} while (--i);
	}
}

void setNumber(unsigned char ledNumber, unsigned char number){
	unsigned char ledShow[] = {0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x80};
	switch(ledNumber){
		case 8:P2_4 = 1; P2_3 = 1; P2_2 = 1; break;
		case 7:P2_4 = 1; P2_3 = 1; P2_2 = 0; break;
		case 6:P2_4 = 1; P2_3 = 0; P2_2 = 1; break;
		case 5:P2_4 = 1; P2_3 = 0; P2_2 = 0; break;
		case 4:P2_4 = 0; P2_3 = 1; P2_2 = 1; break;
		case 3:P2_4 = 0; P2_3 = 1; P2_2 = 0; break;
		case 2:P2_4 = 0; P2_3 = 0; P2_2 = 1; break;
		case 1:P2_4 = 0; P2_3 = 0; P2_2 = 0; break;
	}
	P0 = ledShow[number];
	Delay_showNumber(2);
	P0 = 0x00;
	Delay_showNumber(1);
}


#注解内部自带一个延迟函数，可以被任意调用，输入值单位延迟ms
.h文件在贴图内