我通过单击按钮启动两个线程,每个线程调用一个单独的例程,每个例程将打印线程名称和 i
的值。
程序运行完美,但我看到 Thread1()
函数先运行,然后 Thread2()
例程开始,但我尝试运行 Thread1()
和 Thread2()
都是并行的。我哪里出错了?
private void button1_Click(object sender, EventArgs e)
{
Thread tid1 = new Thread(new ThreadStart(Thread1));
Thread tid2 = new Thread(new ThreadStart(Thread2));
tid1.Start();
tid2.Start();
MessageBox.Show("Done");
}
public static void Thread1()
{
for (int i = 1; i <= 10; i++)
{
Console.Write(string.Format("Thread1 {0}", i));
}
}
public static void Thread2()
{
for (int i = 1; i <= 10; i++)
{
Console.Write(string.Format("Thread2 {0}", i));
}
}
最佳答案
这样我就实现了我的目标。这是代码
using System.Threading.Tasks;
using System.Threading;
class Program
{
static void Main(string[] args)
{
Task task1 = Task.Factory.StartNew(() => doStuff("Task1"));
Task task2 = Task.Factory.StartNew(() => doStuff("Task2"));
Task task3 = Task.Factory.StartNew(() => doStuff("Task3"));
Task.WaitAll(task1, task2, task3);
Console.WriteLine("All threads complete");
Console.ReadLine();
}
static void doStuff(string strName)
{
for (int i = 1; i <= 3; i++)
{
Console.WriteLine(strName + " " + i.ToString());
Thread.Yield();
}
}
}
我从这个 url https://msdn.microsoft.com/en-us/library/dd460705%28v=vs.110%29.aspx 得到了另一个很好的任务库示例.
这是代码
using System.Threading;
using System.Threading.Tasks;
using System.Net;
class Program
{
static void Main()
{
// Retrieve Darwin's "Origin of the Species" from Gutenberg.org.
string[] words = CreateWordArray(@"http://www.gutenberg.org/files/2009/2009.txt");
#region ParallelTasks
// Perform three tasks in parallel on the source array
Parallel.Invoke(() =>
{
Console.WriteLine("Begin first task...");
GetLongestWord(words);
}, // close first Action
() =>
{
Console.WriteLine("Begin second task...");
GetMostCommonWords(words);
}, //close second Action
() =>
{
Console.WriteLine("Begin third task...");
GetCountForWord(words, "species");
} //close third Action
); //close parallel.invoke
Console.WriteLine("Returned from Parallel.Invoke");
#endregion
Console.WriteLine("Press any key to exit");
Console.ReadKey();
}
#region HelperMethods
private static void GetCountForWord(string[] words, string term)
{
var findWord = from word in words
where word.ToUpper().Contains(term.ToUpper())
select word;
Console.WriteLine(@"Task 3 -- The word ""{0}"" occurs {1} times.",
term, findWord.Count());
}
private static void GetMostCommonWords(string[] words)
{
var frequencyOrder = from word in words
where word.Length > 6
group word by word into g
orderby g.Count() descending
select g.Key;
var commonWords = frequencyOrder.Take(10);
StringBuilder sb = new StringBuilder();
sb.AppendLine("Task 2 -- The most common words are:");
foreach (var v in commonWords)
{
sb.AppendLine(" " + v);
}
Console.WriteLine(sb.ToString());
}
private static string GetLongestWord(string[] words)
{
var longestWord = (from w in words
orderby w.Length descending
select w).First();
Console.WriteLine("Task 1 -- The longest word is {0}", longestWord);
return longestWord;
}
// An http request performed synchronously for simplicity.
static string[] CreateWordArray(string uri)
{
Console.WriteLine("Retrieving from {0}", uri);
// Download a web page the easy way.
string s = new WebClient().DownloadString(uri);
// Separate string into an array of words, removing some common punctuation.
return s.Split(
new char[] { ' ', '\u000A', ',', '.', ';', ':', '-', '_', '/' },
StringSplitOptions.RemoveEmptyEntries);
}
#endregion
}
关于c# - 如何并行运行两个线程?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29626685/