[英]run threads in c#
這是在c#中運行線程的代碼
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System;
using System.Threading;
namespace create_thread
{
class Program
{
public delegate void ThreadStart();
static void Main(string[] args)
{
Thread t=new Thread(new ThreadStart(Go));
t.Start();
Go();
}
static void Go()
{
Console.WriteLine("hello");
}
}
}
但這里是錯誤
------ Build started: Project: create_thread, Configuration: Debug x86 ------
c:\users\7\documents\visual studio 2010\Projects\create_thread\create_thread\Program.cs(5,7): warning CS0105: The using directive for 'System' appeared previously in this namespace
c:\users\7\documents\visual studio 2010\Projects\create_thread\create_thread\Program.cs(17,22): error CS1502: The best overloaded method match for 'System.Threading.Thread.Thread(System.Threading.ThreadStart)' has some invalid arguments
c:\users\7\documents\visual studio 2010\Projects\create_thread\create_thread\Program.cs(17,33): error CS1503: Argument 1: cannot convert from 'create_thread.Program.ThreadStart' to 'System.Threading.ThreadStart'
Compile complete -- 2 errors, 1 warnings
Build started 10/25/2010 10:25:40 PM.
ResolveAssemblyReferences:
A TargetFramework profile exclusion list will be generated.
GenerateTargetFrameworkMonikerAttribute:
Skipping target "GenerateTargetFrameworkMonikerAttribute" because all output files are up-to-date with respect to the input files.
CoreCompile:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Csc.exe /noconfig /nowarn:1701,1702 /nostdlib+ /platform:x86 /errorreport:prompt /warn:4 /define:DEBUG;TRACE /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\Microsoft.CSharp.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\mscorlib.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Core.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Data.DataSetExtensions.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Data.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Xml.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Xml.Linq.dll" /debug+ /debug:full /filealign:512 /optimize- /out:obj\x86\Debug\create_thread.exe /target:exe Program.cs Properties\AssemblyInfo.cs "C:\Users\7\AppData\Local\Temp\.NETFramework,Version=v4.0,Profile=Client.AssemblyAttributes.cs"
Build FAILED.
Time Elapsed 00:00:00.30
========== Build: 0 succeeded or up-to-date, 1 failed, 0 skipped ==========
請幫忙
這里的問題是你正在隱藏Thread
構造函數使用的現有類型。
public delegate void ThreadStart();
這會導致您的代碼綁定到您的ThreadStart
而不是System.Threading
命名空間中的版本,從而導致copmilation錯誤。 刪除此定義。
問題是您聲明了自己的ThreadStart
委托而不是使用.NET委托。
修復錯誤后,刪除自己的ThreadStart Delegate定義,並使用帶正確簽名的.net Framework版本
擺脫ThreadStart
委托的聲明。 using System
語句也有太多:
using System;
using System.Threading;
namespace create_thread
{
class Program
{
static void Main(string[] args)
{
Thread t = new Thread(new ThreadStart(Go));
t.Start();
Go();
}
static void Go()
{
Console.WriteLine("hello");
}
}
}
您還應該知道您的代碼將運行Go方法兩次 - 一次在主線程上,一次在后台線程上 - 因此您將在控制台中看到兩次“hello”。
不知道是什么目的,但嘗試刪除行:public delegate void ThreadStart();
double using System;
並刪除您的委托ThreadStart
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