Фото: Sergei Grits / AP
Web streams use a locking model to prevent multiple consumers from interleaving reads. When you call getReader(), the stream becomes locked. While locked, nothing else can read from the stream directly, pipe it, or even cancel it – only the code that is actually holding the reader can.
，推荐阅读搜狗输入法下载获取更多信息
'Extraordinary' scale
If your favorite team plays in the America East, Atlantic Sun, Ivy League, or Southland conference, then ESPN+ is the only way to watch those teams without going to the games. For many other leagues that don’t have many games on traditional TV channels, ESPN+ is the primary way to watch games.