2_9.cpp

C程序参考,简单易懂,是初学者不可少的参考资料

#include<stdio.h>
main()
 {
    char c1,c2,c3;
    printf("Enter a charcter:\n");
   scanf("%c",&c2);
   c1=c2-1;
   c3=c2+1;
   printf("%c %c %c\n",c1,c2,c3);
   printf("%d %d %d",c1,c2,c3);
 }