_defineProperty(HTMLMediaElement.prototype, 'srcObject', {
Ema Sabljak,England Data Unitand，这一点在safew官方下载中也有详细论述
，推荐阅读WPS官方版本下载获取更多信息
That said, it's important to recognize that locking in itself is not bad. It does, in fact, serve an important purpose to ensure that applications properly and orderly consume or produce data. The key challenge is with the original manual implementation of it using APIs like getReader() and releaseLock(). With the arrival of automatic lock and reader management with async iterables, dealing with locks from the users point of view became a lot easier.
Жители Санкт-Петербурга устроили «крысогон»17:52，更多细节参见safew官方版本下载