精选优质文档-倾情为你奉上基于51单片机的频率计设计，c语言程序代码1：#include#define uint unsigned int#define uchar unsigned char#define ulong unsigned longsbit dula=P26;sbit wela=P27;sbit key1=P10;sbit key2=P11;sbit key3=P12;uchar tt=0,mode;ulong num,num1;uchar code shu=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uint z)uint i,j;for(i=z;i0;i-) for(j=110;j0;j-);void display(uchar a,uchar b,uchar c,uchar d,uc
