基于51的串口计算器程序

#include#includeunsignedchartmp;unsignedchardata1=0;unsignedintnum1=0,num2=0,num3=0,fu=0;intq[100]={0};intprintf_flag=0;inta=0;intc=0;voidsend_char(unsignedchartxd);voidsend(unsignedintu);voidmain(){//EA=1;//总开关//ES=1;