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【CSharp】多线程并行搜索文件

作者:DDT / 发布于2012/10/8/ 593

多线程并行搜索文件，使用 System.Threading.Tasks.Task 类型从 Result 属性中返回值。

<div>using System;
using System.IO;
using System.Linq;
using System.Threading.Tasks;</div>
<div>class Program
{
 static void Main()
 {
 // Return a value type with a lambda expression
 Task<int> task1 = Task<int>.Factory.StartNew(() => 1);
 int i = task1.Result;</div>
<div> // Return a named reference type with a multi-line statement lambda.
 Task<Test> task2 = Task<Test>.Factory.StartNew(() =>
 {
 string s = ".NET";
 double d = 4.0;
 return new Test { Name = s, Number = d };
 });
 Test test = task2.Result;</div>
<div> // Return an array produced by a PLINQ query
 Task<string[]> task3 = Task<string[]>.Factory.StartNew(() =>
 {
 string path = @"C:\users\public\pictures\";
 string[] files = Directory.GetFiles(path);</div>
<div> var result = (from file in files.AsParallel()
 let info = new FileInfo(file)
 where info.Extension == ".jpg"
 select file).ToArray();</div>
<div> return result;
 });</div>
<div> foreach (var name in task3.Result)
 Console.WriteLine(name);</div>
<div> }
 class Test
 {
 public string Name { get; set; }
 public double Number { get; set; }
<div> }
}
</div>

试试其它关键字

　多线程搜索　

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