include <stdio.h>
main()
{
char ch;
printf("请输入一个大写字母:");
ch=getchar();
ch=ch+32;
printf("%c,%d\n",ch,ch);
return 0;
}
main()
{
char ch;
printf("请输入一个大写字母:");
ch=getchar();
ch=ch+32;
printf("%c,%d\n",ch,ch);
return 0;
}