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這篇文章主要介紹“C# .NET多線程應用舉例分析”,在日常操作中,相信很多人在C# .NET多線程應用舉例分析問題上存在疑惑,小編查閱了各式資料,整理出簡單好用的操作方法,希望對大家解答”C# .NET多線程應用舉例分析”的疑惑有所幫助!接下來,請跟著小編一起來學習吧!
a.啟動線程
顧名思義,“啟動線程”就是新建并啟動一個線程的意思,如下代碼可實現:
Thread thread1 = new Thread(new ThreadStart( Count));
其中的 Count 是將要被新線程執行的函數。
b.殺死線程
“殺死線程”就是將一線程斬草除根,為了不白費力氣,在殺死一個線程前***先判斷它是否還活著(通過 IsAlive 屬性),然后就可以調用 Abort 方法來殺死此線程。
c.暫停線程
它的意思就是讓一個正在運行的線程休眠一段時間。如 thread.Sleep(1000); 就是讓線程休眠1秒鐘。
d.優先級
這個用不著解釋了。Thread類中有一個ThreadPriority屬性,它用來設置優先級,但不能保證操作系統會接受該優先級。一個線程的優先級可分為5種:Normal, AboveNormal, BelowNormal, Highest, Lowest。具體實現例子如下:
thread.Priority = ThreadPriority.Highest;
e.掛起線程
Thread類的Suspend方法用來掛起線程,知道調用Resume,此線程才可以繼續執行。如果線程已經掛起,那就不會起作用。
if (thread.ThreadState = ThreadState.Running) { thread.Suspend(); }
f.恢復線程
用來恢復已經掛起的線程,以讓它繼續執行,如果線程沒掛起,也不會起作用。
if (thread.ThreadState = ThreadState.Suspended) { thread.Resume(); }
下面將列出一個例子,以說明簡單的線程處理功能。此例子來自于幫助文檔。
using System; using System.Threading; // Simple threading scenario: Start a static method running // on a second thread. public class ThreadExample { // The ThreadProc method is called when the thread starts. // It loops ten times, writing to the console and yielding // the rest of its time slice each time, and then ends. public static void ThreadProc() { for (int i = 0; i < 10; i++) { Console.WriteLine("ThreadProc: {0}", i); // Yield the rest of the time slice. Thread.Sleep(0); } } public static void Main() { Console.WriteLine("Main thread: Start a second thread."); // The constructor for the Thread class requires a ThreadStart // delegate that represents the method to be executed on the // thread. C# simplifies the creation of this delegate. Thread t = new Thread(new ThreadStart(ThreadProc)); // Start ThreadProc. On a uniprocessor, the thread does not get // any processor time until the main thread yields. Uncomment // the Thread.Sleep that follows t.Start() to see the difference. t.Start(); //Thread.Sleep(0); for (int i = 0; i < 4; i++) { Console.WriteLine("Main thread: Do some work."); Thread.Sleep(0); } Console.WriteLine("Main thread: Call Join(), to wait until ThreadProc ends."); t.Join(); Console.WriteLine("Main thread: ThreadProc.Join has returned. Press Enter to end program."); Console.ReadLine(); } }
此代碼產生的輸出類似如下內容:
Main thread: Start a second thread. Main thread: Do some work. ThreadProc: 0 Main thread: Do some work. ThreadProc: 1 Main thread: Do some work. ThreadProc: 2 Main thread: Do some work. ThreadProc: 3 Main thread: Call Join(), to wait until ThreadProc ends. ThreadProc: 4 ThreadProc: 5 ThreadProc: 6 ThreadProc: 7 ThreadProc: 8 ThreadProc: 9 Main thread: ThreadProc.Join has returned. Press Enter to end program.
到此,關于“C# .NET多線程應用舉例分析”的學習就結束了,希望能夠解決大家的疑惑。理論與實踐的搭配能更好的幫助大家學習,快去試試吧!若想繼續學習更多相關知識,請繼續關注億速云網站,小編會繼續努力為大家帶來更多實用的文章!
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