/利用51单片机控制LCD1602，实现加减乘除运算#include#define uint unsigned int #define uchar unsigned char #define DATE_IO P0/P0口并行传输数据（LCD1602的数据端接P0口）sbit RS=P10;/LCD1602寄存器选择端sbit E=P12; /使能信号端sbit RW=P11;/读写控制端sbit deng=P13;/结果sbit shuzi11=P32;/前面的数字加1(因为我的按键是与P3口相连的)sbit shuzi22=P37; /后面的数字加1 sbit jia=P33;/加号sbit jian=P34;/减号sbit cheng=P35;/乘号sbit chu=P36;/除号uint countqian=0,counthou=0;/数值uchar qian,bai,shi,ge,a=0;uchar code table1=01234
