一种可能的应用是在需要把大量文件上传到服务器上时，比如需要把照片上传到照片库中或上传许多文本文件。
One potential application is when you need to upload a large number of files to the server, like when you upload photos to a photo gallery or when you need to upload a number of text files.
一种可能的应用是在需要把大量文件上传到服务器上时，比如需要把照片上传到照片库中或上传许多文本文件。
One potential application is when you need to upload a large number of files to the server, like when you upload photos to a photo gallery or when you need to upload a number of text files.
应用推荐