#include<stdio.h>main(){int c;while((c=getchar())!='\n'){switch(c-'2'){case 0:case 1:putch
#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:______