例6-1

#include<stdio.h>

int main(void)

{

      int i;

    char ch_lower,ch_upper;

    for(i=1;i<=6;i++)

    {

        scanf("%c",&ch_lower);

        if(ch_lower>='a' && ch_lower<='z')

            ch_upper = ch_lower-'a'+'A';

        printf("%c->%c->%d\n",ch_lower,ch_upper,ch_upper%10);

    }

    return 0;

}