If a stream is writable, writing at the end of the stream expands the stream.

如果流是可写的，则在流的末尾写入将使该流扩展。

youdao

If a stream is writable, writing at the end of the stream expands the stream.

如果流是可写的，则在流的末尾写入将使该流扩展。

youdao