C # Task.Run and Task.Factory.StartNew difference

Original: C # Task.Run and Task.Factory.StartNew difference

Task.Run is only available after a dotnet framework 4.5, but Task.Factory.StartNew can use more than Task.Run parameters, can do more customization. Task.Run can be considered a simplified Task.Factory.StartNew use, in addition to specifying a thread is prolonged occupation, otherwise use Task.Run.

Long-running

The biggest difference is that the two functions can be set Task.Factory.StartNew long-running thread, then the thread pool thread will not wait for the recovery

Task.Factory.StartNew(() =>
{
    Console.WriteLine("进行 线程" + Thread.CurrentThread.ManagedThreadId);
}, TaskCreationOptions.LongRunning);

Thread abnormal operation

Task.Run and Task.Factory.StartNew there are not abnormal when thrown out, so it is necessary to catch exceptions.
No reaction outside the catch exceptions, such an approach does not

for (int i = 0; i < 10; i++)
{
    try
    {
        Task.Factory.StartNew(() =>
        {

            Console.WriteLine($"Task.Factory.StartNew value {i}");
            int value = 2 / (i % 2);
        });
    }
    catch
    {
        Console.WriteLine("Task.Factory.StartNew异常");
    }

    Thread.Sleep(10);
}

for (int j = 0; j < 10; j++)
{

    try
    {
        Task.Run(() =>
        {
            Console.WriteLine($"Task.Run value {j}");
            int value = 2 / (j % 2);
        });
    }
    catch
    {
        Console.WriteLine("Task.Run异常");
    }

    Thread.Sleep(10);
}

Catch the exception in the thread, which is the correct wording

for (int i = 0; i < 10; i++)
{
    Task.Factory.StartNew(() =>
    {
        try
        {
            Console.WriteLine($"Task.Factory.StartNew value {i}");
            int value = 2 / (i % 2);
        }
        catch
        {
            Console.WriteLine("Task.Factory.StartNew异常");
        }
    });
    Thread.Sleep(10);
}

for (int j = 0; j < 10; j++)
{
    Task.Run(() =>
    {
        try
        {
            Console.WriteLine($"Task.Run value {j}");
            int value = 2 / (j % 2);
        }
        catch
        {
            Console.WriteLine("Task.Run异常");
        }
    });
    Thread.Sleep(10);
}