Unfortunately, this does not work well with image uploads because you don't know in advance what the user will upload.
不幸的是，这不适合用于图像上传，因为无法提前获知用户要上传的内容。
Unfortunately, this does not work well with image uploads because you don't know in advance what the user will upload.
不幸的是，这不适合用于图像上传，因为无法提前获知用户要上传的内容。
应用推荐