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云代码 - c#代码库

搜索文件(多线程并行执行)

2012-10-19 作者: 程序猿style举报

[c#]代码库

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


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