3-6.c

一些简单的c51程序

#include <stdio.h>
#include <reg51.h>
 main()
        {
            int i=0;
            char c;
            SCON = 0x50; 
TMOD |= 0x20; 
TH1 = 0xf3; 
TR1 = 1;
TI = 1; 
			while(1)
            {
               c='\0';
               while(c!=13)
               {
                    c=getchar();
                    if(c==27)
                      goto quit;
                    printf("%c\n", c);
               }
               i++;
               printf("The No. is %d\n",i);
          }
          quit:
               printf("The end");
      }