📄 linearsearch.cs
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using System;
using System.Threading ;
using System.Collections ;
namespace WebApplication1
{
/// <summary>
///
/// </summary>
public class linearSearch
{
private ArrayList _results= null;
private string _keyword;
private DateTime _started;
private DateTime _end;
private void addResult(result thisResult)
{
_results.Add(thisResult);
}
public TimeSpan totalTime
{
get { return _end.Subtract(_started); }
}
public linearSearch(){}
public ArrayList search(string keyword)
{
if (keyword==null && keyword=="")
return null;
_started=DateTime.Now;
_keyword=keyword;
_results=new ArrayList();
searchWebSites();
searchDatabases();
searchDirectoryServers();
_end=DateTime.Now;
return _results;
}
private void searchDatabases()
{
result r = new result("符合查询关键字的记录:\""+_keyword+"\"来自数据库服务器中");
try
{
Thread.Sleep(1000);
r.links.Add( new link("书名- 《你今天心情不好吗?》","HHFDESKTOP"));
Thread.Sleep(1000);
r.links.Add( new link("书名 - 《中国机械设计大典》","HHFDESKTOP"));
Thread.Sleep(1000);
r.links.Add( new link("书名 - 《甲骨文献集成》","HHFDESKTOP"));
r.message="查询结果:" + r.links.Count+ "项";
r.isCompleted =true;
}
catch(Exception e)
{
r.isCompleted=false;
r.message ="查询结果:" + r.links.Count+ "项"+"在操作出错之前";
}
finally
{
addResult(r);
}
}
private void searchDirectoryServers()
{
result r = new result("符合查询关键字的记录:\""+_keyword+"\"来自目录服务器中");
try
{
Thread.Sleep(1000);
r.links.Add( new link("员工 -书名 张大宝","/"));
r.links.Add( new link("员工 - 书名 刘爱山","/"));
r.message="查询结果::" + r.links.Count+ "项";
r.isCompleted =true;
}
catch(Exception e)
{
r.isCompleted=false;
r.message ="查询结果:" + r.links.Count+ "项"+"在操作出错之前";
}
finally
{
addResult(r);
}
}
private void searchWebSites()
{
result r = new result("符合查询关键字的记录:\""+_keyword+"\"来自WEB服务器中");
try
{
Thread.Sleep(2000);
r.links.Add( new link("简体中文网页-书名 《国王和国后》","HTTP://WWW.163.COM"));
Thread.Sleep(1000);
r.links.Add( new link("简体中文网页 -书名 《坐井之小青蛙》","HTTP://WWW.163.COM"));
Thread.Sleep(1000);
r.links.Add( new link("简体中文网页 -书名 《激情燃烧的岁月》","HTTP://WWW.163.COM"));
Thread.Sleep(1000);
r.links.Add( new link("简体中文网页 -书名《 林海雪原》","HTTP://WWW.163.COM"));
r.message="查询结果:" + r.links.Count+ "项";
r.isCompleted =true;
}
catch(Exception e)
{
r.isCompleted=false;
r.message ="查询结果:" + r.links.Count+ "项"+"在操作出错之前";
}
finally
{
addResult(r);
}
}
}
}
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