While a thread is running, either uploading or downloading, you can query it to check on its status to provide the user with feedback (e.g. a progress bar).

当一个线程在运行的时候，不管是上传还是下载，你可以查询进程状态并且给用户一个反馈（例如一个进度条）。

youdao

While a thread is running, either uploading or downloading, you can query it to check on its status to provide the user with feedback (eg. a progress bar).

当一个线程在运行的时候，不管是上传还是下载，你可以查询进程状态并且给用户一个反馈(例如一个进度条)。

youdao