这会生成一系列大小为实际图像25%的缩略图，其文件名称是在JPEG文件名的前面加上thumb-前缀。

This will produce a series of thumbnails 25% the size of the real image, with a filename that is the name of the JPEG file with a thumb - prepended.

youdao

这会生成一系列大小为实际图像25%的缩略图，其文件名称是在JPEG文件名的前面加上thumb-前缀。

This will produce a series of thumbnails 25% the size of the real image, with a filename that is the name of the JPEG file with a thumb - prepended.

youdao