while(scanf( ″ %d ″ ,&a ［ k ］ ),a ［ k ］ >0) s=s+a ［ k++ ］ ; 　　　    　     _________

    for(i=0;i<k;i++) printf( ″ %d ＼ n ″ ,a ［ i ］ ) ；                                          _________

    printf( ″ %d ＼ n ″ ,s);                                                                           _________

  }

2. ＃ include <stdio.h>

  void main()

  { char a ［ 8 ］ ={’   ’},t;int j,k;

    for(j=0;j<5;j++) a ［ j ］ =(char) (’a’+j);

    for(j=0;j<4;j++) {                                                                          输出结果 _________

      t=a ［ 4 ］ ;for(k=4;k>0;k --) a ［ k ］ =a ［ k -1 ］ ;a ［ 0 ］ =t;                            _________

      printf( ″ %s\n ″ ,a);                                                                                  _________