#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar tang[20]="woshitangqun";
uint i,j;uint count=0;
uchar temp,qun,bao,m,n;
void t();void a();
void main()
{j=0;
TMOD=0x20;
TH1=0xfd;
TL1=0xfd;
SM0=0;SM1=1;
ET0=1;
TR1=1;ES=1;
REN=1;
    while(1)
 {    
  if(j==0)                 //单片机问候，向电脑发送一个字符串，表示单片机已经准备好工作了
  {
   for(i=0;i<20;)
   {
   SBUF=tang[i];
   while(TI==0);
   i++;
   TI=0;
      j++;
   }
  }
  t();
 }
}
void t()
{       while(RI==0);
  RI=0;
          if(SBUF=='s')
    {    /* SBUF='s';
        while(TI==0);
     TI=0;*/  
     while(RI==0);RI=0;
     if(SBUF=='s')a();        //调用a（），是为了解决ssstart和sstart的问题
     if(SBUF=='t')
       {
     /*SBUF='t';    //发送到屏幕
              while(TI==0);TI=0;*/
     while(RI==0);RI=0; 
         if(SBUF=='a')
            {
           /*SBUF='a';    //发送到屏幕
                   while(TI==0);
            TI=0;*/
            while(RI==0);RI=0;               //接收字符，并用下面的if语句判断
            if(SBUF=='r')
               {
             /*SBUF='r';    //发送到屏幕,如果想要讲命令显示在屏幕上的话，就可以将这一句用上
                      while(TI==0);TI=0;*/
             while(RI==0);RI=0;   
                   if(SBUF=='t')
                   {
                /*SBUF='t';    //发送到屏幕
               while(TI==0);TI=0;*/                  
      while(1)
      {n=0;

            while(RI==0);RI=0;temp=SBUF;          //接收一个字符，赋值给temp;
          if(SBUF=='e')         //判断是否是e，若否则用else输出，是则近入if语句
          {
           while(RI==0)
           {for(m=0;m<100;m++);count++;}
               RI=0;                                //若传输完毕，则给RI赋值，
            bao=SBUF;                                 //把传入的值赋给bao
            #include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar tang[20]="woshitangqun";
uint i,j;uint count=0;
uchar temp,qun,bao,m,n;
void t();void a();
void main()
{j=0;
TMOD=0x20;
TH1=0xfd;
TL1=0xfd;
SM0=0;SM1=1;
ET0=1;
TR1=1;ES=1;
REN=1;
    while(1)
 {    
  if(j==0)
  {
   for(i=0;i<20;)
   {
   SBUF=tang[i];
   while(TI==0);
   i++;
   TI=0;
      j++;
   }
  }
  t();
 }
}
void t()
{       while(RI==0);
  RI=0;
          if(SBUF=='s')
    {    /* SBUF='s';
        while(TI==0);
     TI=0;*/  
     while(RI==0);RI=0;
     if(SBUF=='s')a();
     if(SBUF=='t')
       {
     /*SBUF='t';    //发送到屏幕
     while(TI==0);TI=0;*/
     while(RI==0);RI=0; 
         if(SBUF=='a')
            {
           /*SBUF='a';    //发送到屏幕
                   while(TI==0);
            TI=0;*/
                      while(RI==0);RI=0;
            if(SBUF=='r')
               {
             /*SBUF='r';    //发送到屏幕
             while(TI==0);TI=0;*/
             while(RI==0);RI=0;   
                   if(SBUF=='t')
                   {
                 /*SBUF='t';    //发送到屏幕
                 while(TI==0);TI=0;*/                  
      while(1)
      {n=0;

     while(RI==0);RI=0;temp=SBUF;          //接收一个字符，赋值给temp;
       if(SBUF=='e')                //判断是否是e，若否则用else输出，是则近入if语句
          {
           while(RI==0)
           RI=0;                           //若传输完毕，则给RI软件清零，
            bao=SBUF;                                 //把传入的值赋给bao
            while(SBUF=='n')                            //判断第二个字符是否是

             RI=0;

             qun=SBUF;
             if(SBUF=='d')
               {;
            break;
            }else{SBUF='e';while(TI==0);TI=0;SBUF='n';while(TI==0);TI=0;SBUF=qun;while(TI==0);TI=0;}
            }else{SBUF='e';while(TI==0);TI=0;SBUF=bao;while(TI==0);TI=0;}
          }else{ SBUF=temp;while(TI==0);TI=0;}
            }
      }
      }
      }
            }
            }
}
void a()
{
          if(SBUF=='s')
    {    /* SBUF='s';
        while(TI==0);
     TI=0;*/  
     while(RI==0);RI=0;
     if(SBUF=='s')a();         //递归调用，重复使用a（）
     if(SBUF=='t')
       {
     /*SBUF='t';    //发送到屏幕
              while(TI==0);TI=0;*/
     while(RI==0);RI=0; 
         if(SBUF=='a')
            {
           /*SBUF='a';    //发送到屏幕
                   while(TI==0);
            TI=0;*/
                      while(RI==0);RI=0;
            if(SBUF=='r')
               {
             /*SBUF='r';    //发送到屏幕
                      while(TI==0);TI=0;*/
             while(RI==0);RI=0;   
                   if(SBUF=='t')
                   {
                /*SBUF='t';    //发送到屏幕
                         while(TI==0);TI=0;*/                  
      while(1)
      {

                                   while(RI==0);RI=0;
                if(SBUF=='e')
          {
                     while(RI==0);RI=0;
            bao=SBUF;
            if(SBUF=='n')
            {
            
                while(RI==0);RI=0;
                            qun=SBUF;
             if(SBUF=='d')
               {
                                    //SBUF='d';while(TI==0);TI=0;
            break;
            }else{SBUF='e';while(TI==0);TI=0;SBUF='n';while(TI==0);TI=0;SBUF=qun;while(TI==0);TI=0;}
            }else{SBUF='e';while(TI==0);TI=0;SBUF=bao;while(TI==0);TI=0;}
          }
          temp=SBUF; 
                      SBUF=temp;
                      while(TI==0);
                      TI=0;
          
      }
      }
      }
      }
            }
            }
}

(SBUF=='n')                            //判断第二个字符是否是
            {
                   RI=0;
                   qun=SBUF;
             if(SBUF=='d')
               {n++;
            break;
            }else{SBUF='e';while(TI==0);TI=0;SBUF='n';while(TI==0);TI=0;SBUF=qun;while(TI==0);TI=0;}
            }else{SBUF='e';while(TI==0);TI=0;SBUF=bao;while(TI==0);TI=0;}
          }else{ SBUF=temp;while(TI==0);TI=0;}
             }
      }
      }
      }
            }
            }
}
void a()
{
      if(SBUF=='s')
     {    /* SBUF='s';        //此行可以将字符输出到屏幕
        while(TI==0);
     TI=0;*/  
     while(RI==0);RI=0;
     if(SBUF=='s')a();
     if(SBUF=='t')
       {
     /*SBUF='t';    //发送到屏幕
     while(TI==0);TI=0;*/
     while(RI==0);RI=0; 
         if(SBUF=='a')
            {
           /*SBUF='a';    //发送到屏幕
                   while(TI==0);
            TI=0;*/
                      while(RI==0);RI=0;
            if(SBUF=='r')
               {
             /*SBUF='r';    //发送到屏幕
                      while(TI==0);TI=0;*/
             while(RI==0);RI=0;   
                   if(SBUF=='t')
                   {
                /*SBUF='t';    //发送到屏幕
                         while(TI==0);TI=0;*/                  
      while(1)
      {

          while(RI==0);RI=0;
                if(SBUF=='e')
          {
                     while(RI==0);RI=0;
            bao=SBUF;
            if(SBUF=='n')
            {
            
                while(RI==0);RI=0;
                   qun=SBUF;
             if(SBUF=='d')
               {
                   break;
            }else{SBUF='e';while(TI==0);TI=0;SBUF='n';while(TI==0);TI=0;SBUF=qun;while(TI==0);TI=0;}
            }else{SBUF='e';while(TI==0);TI=0;SBUF=bao;while(TI==0);TI=0;}
          }else{temp=SBUF;SBUF=temp;while(TI==0);TI=0}

   }    
      }
      }
      }
      }
            }
            }
}