ch19-12.c

C语言程序设计上机指导与练习 冶金工业出版社 刘怀亮

#include"stdio.h"
void fun(char ch)
{
   switch(【 1 】)
   {  case 'y':
      case 'Y': printf("\n This is YES.\n");【 2 】);
      case 'n':
      case 'N': printf("\n This is NO.\n");
   }
}
main()
{
   char ch;
   printf("\n Enter a char 'y', 'Y'or 'n', 'N': ");
   ch=【 3 】;
   printf("ch:%c",ch);
   【 4 】;
}