具体笔记参考我的Notion：
Notion – The all-in-one workspace for your notes, tasks, wikis, and databases.
这里贴一个代码，详细笔记见我的Notion
具体实现代码：
#include "reg51.h" sbit P2_0=P2^0; unsigned char code TABLE[]={0x42,0x82,0x82,0x82,0x84,0x02,0x72, 0x62,0x72,0x62,0x52,0x48, 0x0B2,0x0B2,0x0B2,0x0B2,0x0B4,0x02,0x0A2, 0x12,0x0A2,0x0D2,0x92,0x88, 0x82,0x0B2,0x0B2,0x0A2,0x84,0x02,0x72, 0x62,0x72,0x62,0x52,0x44,0x02,0x12, 0x12,0x62,0x62,0x52,0x44,0x02,0x82, 0x72,0x62,0x52,0x32,0x48, 0x72,0x62,0x52,0x32,0x48,0x00}; unsigned int code TABLE1[]={64021,64103,64260,64400, 64524,64580,64684,64777, 64820,64898,64968,65030, 64934} ; unsigned char th0_temp,tl0_temp; void SING(unsigned char hi); void DELAY(unsigned char lo); main() { unsigned char i,hi,lo,coute; TMOD=0X01; ET0=1; EA=1; TR0=1; while(1) { P2_0=1; coute=0; while(TABLE[coute]!=0) { i=TABLE[coute]; coute++; lo=i&0x0f; hi=(i&0xf0)>>4; if(hi>0) SING(hi); else TR0=0; DELAY(lo); } } } void SING(unsigned char hi) { th0_temp=(TABLE1[hi-1]/256); TH0=th0_temp; tl0_temp=(TABLE1[hi-1]%256); TL0=tl0_temp; TR0=1; } void DELAY(unsigned char lo) { unsigned char temp1,temp2; do { for(temp1=0;temp1<150;temp1++) for(temp2=0;temp2<200;temp2++); }while(lo--); } void INTT0() interrupt 1 //定时器0中断函数 { TH0=th0_temp; TL0=tl0_temp; P2_0=~P2_0; }
