void sort(int a[], int n)
         { int i, j ,t;
          for (i=0; i<n-1;i++)
            for (j=i+1; j<n;j++)
           if (a[i]<a[j]{  t=a[i]; a[i]=a[j]; a[j]=t;  }
         }
        main()
        { int aa[10]={1,2,3,4,5,6,7,8,9,10}, i;
         sort(aa+2, 5);
         for (i=0; i<10; i++) printf("%d,",aa[i]);
         printf("\n");
         }
         程序运行后的输出结果是