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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace SoloDataStructure
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{
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public class BinschDemo
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{
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public static int Binsch(int[] a,int key)
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{
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int low = 1;
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int high = a.Length;
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while (low <= high)
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{
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int mid=(low+high)/2;
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if (key == a[mid])
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{
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return mid; //返回找到的索引值
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}
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else
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{
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if (key < a[mid])
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high = mid - 1;
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else
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low = mid + 1;
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}
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}
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return 0; //查找失败
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}
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static void Main(string[] args)
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{
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int[] list=new int[10];
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for (int i = 0; i < 10; i++)
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{
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Console.Write("input 10 number,here is the{0}th number :",i);
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list[i] =Convert.ToInt32(Console.ReadLine());
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}
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Console.Write("Ok!Find a number in the list:");
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int find = Console.Read();
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int result = Binsch(list,find);
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Console.WriteLine(result);
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Console.ReadLine();
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}
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}
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}

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