#include<stdio.h>

main()
{   int i,j,t,k,low,high,mid,a[10];
   printf("Please enter ten numbers:");
   for(i=0;i<10;i++)
     scanf("%d",&a[i]);
  for(j=0;j<9;j++)
   for(i=0;i<9-j;i++)
     if(a[i]<a[i+1])
      { t=a[i];
        a[i]=a[i+1];
        a[i+1]=t;
       }
       for(i=0;i<10;i++)
       printf("%3d",a[i]);
       printf("\n");
    printf("Please enter one number to be search:\n");
    scanf("%d",&k);
    low=0;
    high=9;
    mid=(low+high)/2;
    while(low<high&&k!=a[mid])
    { if(k<a[mid])
        high=mid-1;
      else
        low=mid+1;
        mid=(low+high)/2 ;
     }
     if(k==a[mid])
     printf("%d is at position %d.of array.",k,mid);
     else
     printf("%d is not in array.",k);
     getch();




}
为什么老是输出ELSE的结果？！
还有麻烦下帮忙在若不存在的情况下插入该数到适当位置，请大家帮帮忙！

大伙救急呀！

真是感谢，我找错了老半天都弄不出来哪错了，十分感谢！