多参数化线程效率

你为什么要开始一个线程然后立即加入呢？

我通常会这样做:

List threads = new List();

foreach (string item in items)
{
    string copy = item; // Important due to variable capture
    ThreadStart ts = () => DoWork(copy); // Strongly typed :)
    Thread t = new Thread(ts);
    t.Start();
    threads.Add(t);
}

foreach (Thread t in threads)
{
    t.Join();
}