#include<stdio.h> main() int c; whi
问题:
#include<stdio.h>
main()
int c;
while((c=getchar())!=’\n’)
switch(c-’2’)
case 0:
case 1:putchar(c+4);
case 2:putchar(c+4);break;
case 3:putchar(c+3);
case 4:putchar(c+2);break;
printf("\n");
程序运行时,输入2743<CR>,则运行结果是:______