本文整理匯總了C#中System.Threading.Tasks.Task.Wait方法的典型用法代碼示例。如果您正苦於以下問題：C# Task.Wait方法的具體用法？C# Task.Wait怎麽用？C# Task.Wait使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Threading.Tasks.Task的用法示例。
在下文中一共展示了Task.Wait方法的5個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Main
//引入命名空間
using System;
using System.Threading.Tasks;
public class Example
{
public static void Main()
{
Task t = Task.Run( () => {
Random rnd = new Random();
long sum = 0;
int n = 5000000;
for (int ctr = 1; ctr <= n; ctr++) {
int number = rnd.Next(0, 101);
sum += number;
}
Console.WriteLine("Total: {0:N0}", sum);
Console.WriteLine("Mean: {0:N2}", sum/n);
Console.WriteLine("N: {0:N0}", n);
} );
TimeSpan ts = TimeSpan.FromMilliseconds(150);
if (! t.Wait(ts))
Console.WriteLine("The timeout interval elapsed.");
}
}輸出：
Total: 50,015,714 Mean: 50.02 N: 1,000,000 Or it displays the following output: The timeout interval elapsed.
示例2: Main
//引入命名空間
using System;
using System.Threading;
using System.Threading.Tasks;
public class Example
{
public static void Main()
{
CancellationTokenSource ts = new CancellationTokenSource();
Thread thread = new Thread(CancelToken);
thread.Start(ts);
Task t = Task.Run( () => { Task.Delay(5000).Wait();
Console.WriteLine("Task ended delay...");
});
try {
Console.WriteLine("About to wait completion of task {0}", t.Id);
bool result = t.Wait(1510, ts.Token);
Console.WriteLine("Wait completed normally: {0}", result);
Console.WriteLine("The task status: {0:G}", t.Status);
}
catch (OperationCanceledException e) {
Console.WriteLine("{0}: The wait has been canceled. Task status: {1:G}",
e.GetType().Name, t.Status);
Thread.Sleep(4000);
Console.WriteLine("After sleeping, the task status: {0:G}", t.Status);
ts.Dispose();
}
}
private static void CancelToken(Object obj)
{
Thread.Sleep(1500);
Console.WriteLine("Canceling the cancellation token from thread {0}...",
Thread.CurrentThread.ManagedThreadId);
CancellationTokenSource source = obj as CancellationTokenSource;
if (source != null) source.Cancel();
}
}
// The example displays output like the following if the wait is canceled by
// the cancellation token:
// About to wait completion of task 1
// Canceling the cancellation token from thread 3...
// OperationCanceledException: The wait has been canceled. Task status: Running
// Task ended delay...
// After sleeping, the task status: RanToCompletion
// The example displays output like the following if the wait is canceled by
// the timeout interval expiring:
// About to wait completion of task 1
// Wait completed normally: False
// The task status: Running
// Canceling the cancellation token from thread 3...示例3: Main
//引入命名空間
using System;
using System.Threading;
using System.Threading.Tasks;
public class Example
{
public static void Main()
{
CancellationTokenSource ts = new CancellationTokenSource();
Task t = Task.Run( () => { Console.WriteLine("Calling Cancel...");
ts.Cancel();
Task.Delay(5000).Wait();
Console.WriteLine("Task ended delay...");
});
try {
Console.WriteLine("About to wait for the task to complete...");
t.Wait(ts.Token);
}
catch (OperationCanceledException e) {
Console.WriteLine("{0}: The wait has been canceled. Task status: {1:G}",
e.GetType().Name, t.Status);
Thread.Sleep(6000);
Console.WriteLine("After sleeping, the task status: {0:G}", t.Status);
}
ts.Dispose();
}
}輸出：
About to wait for the task to complete... Calling Cancel... OperationCanceledException: The wait has been canceled. Task status: Running Task ended delay... After sleeping, the task status: RanToCompletion
示例4: Main
//引入命名空間
using System;
using System.Threading.Tasks;
public class Example
{
public static void Main()
{
Task t = Task.Run( () => {
Random rnd = new Random();
long sum = 0;
int n = 5000000;
for (int ctr = 1; ctr <= n; ctr++) {
int number = rnd.Next(0, 101);
sum += number;
}
Console.WriteLine("Total: {0:N0}", sum);
Console.WriteLine("Mean: {0:N2}", sum/n);
Console.WriteLine("N: {0:N0}", n);
} );
if (! t.Wait(150))
Console.WriteLine("The timeout interval elapsed.");
}
}輸出：
Total: 50,015,714 Mean: 50.02 N: 1,000,000 Or it displays the following output: The timeout interval elapsed.
示例5: Main
//引入命名空間
using System;
using System.Threading.Tasks;
public class Example
{
public static void Main()
{
Task t = Task.Run( () => {
Random rnd = new Random();
long sum = 0;
int n = 1000000;
for (int ctr = 1; ctr <= n; ctr++) {
int number = rnd.Next(0, 101);
sum += number;
}
Console.WriteLine("Total: {0:N0}", sum);
Console.WriteLine("Mean: {0:N2}", sum/n);
Console.WriteLine("N: {0:N0}", n);
} );
t.Wait();
}
}輸出：
Total: 50,015,714 Mean: 50.02 N: 1,000,000