writableStream.abort([reason])

• reason <any>

• 返回：undefined 兑现的 promise。

  ¥Returns: A promise fulfilled with undefined.

突然终止 WritableStream。所有排队的写入都将被取消，并拒绝相关的 promise。

¥Abruptly terminates the WritableStream. All queued writes will be canceled with their associated promises rejected.