主线程

• Alter the main thread by setting the client thread to sta or mta
  通过将客户端线程设置为sta或mta改变主线程。
• Asynchronously executes the delegate on the thread that created this object
  在执行此对象的主线程上执行委托。
• Each process is started with a single thread , its primary thread
  每个进程在启动时都只有单个线程，即它的主线程。
• The main thread is indicated as
  主线程以
• The primary thread is not necessarily the thread at index 0 of the collection
  主线程不一定是集合中位于索引0处的线程。
• What happens when the master thread chokes and the other threads keep going
  当主线程崩溃而其它线程继续运行时发生什么？
• The remaining main thread uses a system timer to obtain timed updates of the
  移动球时，其余的主线程使用系统计时器来获取对
• Constructor does not initialize the principal for the application s main thread
  构造函数不初始化该应用程序主线程的主体。
• The primary thread is not necessarily located at the first index in the collection
  主线程不必位于集合中的第一个索引位置。
• The application needs to initialize the principal for the application s main thread
  所以应用程序需要初始化其主线程的主体。