Dropbox是一个相当不错的云存储提供商，有多种类型的帐户，基本^(Basic)计划附带 2GB 空间，您可以使用它来存储所有文件并在多个设备之间同步。如果您经常通过此云存储共享文件，这里有一个简单的技巧，可让您在 Dropbox 上更新共享文件，而不会破坏其 URL 或链接^{(update a shared file, without breaking its URL or link, on Dropbox)}。

有很多人使用Dropbox来共享文件、文档等。例如，您作为一个团队工作，并且想要共享您已更新的文档。在这种情况下，有两种不同的方法可以做到这一点。首先^(First)，您可以为两个不同的文件共享两个不同的链接。其次^(Second)，您可以使用此技巧替换文件而不更改共享URL。当您需要经常更改文件时，第二种方法似乎非常有用。您可以尝试这个技巧，而不是为不同的文件创建单独的链接。

在不破坏链接的情况下更新Dropbox上的共享文件^{(Shared File)}

当您在Dropbox^(Dropbox)上创建共享链接时，它会提供如下永久链接：

https://www.dropbox.com/s/unique_id/photo.jpg?dl=0

每次创建新的共享链接时，unique_id都会更改。也就是说，如果你从指定位置删除一个文件，并将更新后的同名文件上传到同一个目录，unique_id 会被改变。因此，第一个共享链接会显示 404 错误。

为避免此问题，您需要替换文件而不删除^{( replace the file without deleting)}. 这意味着将更新的文件重命名为与已上传到Dropbox^(Dropbox)的当前文件相同的名称。您需要在上传到Dropbox之前更改名称。

如果您上传两个具有相同名称和扩展名的单独文件，现有文件将被新文件替换，但共享链接将保持不变。这意味着您现有的共享链接不会显示任何404 错误^{(404 error)}。

请务必注意，当您在Dropbox上替换文件时，旧文件会立即被删除。因此，您将无法在回收站^{(Recycle Bin)}中找到该旧文件。如果您需要保留旧文件，建议先下载旧文件，然后再用新文件替换。新文件的扩展名应与现有文件相同。否则，它们将充当两个不同文件的链接。

让我们知道这是否适合您。^{(Let us know if this works for you.)}

How to update a Shared File on Dropbox without breaking its link

Dropbox is a pretty good cloud storage provider that has several types of account, and the Basic plan comes with 2GB of space that you can use to store all the files and synchronize across multiple devices. If you often share files through this cloud storage, here is a simple trick that will let you update a shared file, without breaking its URL or link, on Dropbox.

There are many people, who use Dropbox to share files, documents, and more. For example, you are working as a team, and you want to share a document that you have updated. At such times, there are two different methods to do that. First, you can share two different links for two different files. Second, you can use this trick to replace the file without changing the shared URL. The second method seems very useful when you need to change the file frequently. Instead of creating a separate link for different files, you can try out this trick.

Update a Shared File on Dropbox without breaking its link

When you create a sharing link on Dropbox, it offers a permalink like this:

https://www.dropbox.com/s/unique_id/photo.jpg?dl=0

Each time you create a new sharing link, the unique_id gets changed. That means, if you delete a file from a specified location, and upload the updated file with the same name to the same directory, the unique_id will be changed.Hence, the first shared link will show a 404 error.

To avoid this issue, you need to replace the file without deleting. That means rename the updated file with the same name as the current file that is already uploaded to Dropbox. You need to change the name before uploading to Dropbox.

If you upload two separate files with the same name and extension, the existing file will be replaced with the new one, but the shared link will be unchanged. That means your existing shared link will not show any 404 error.

It is important to note that when you replace a file on Dropbox, the old file gets deleted instantly. And so you will not be able to find that old file in the Recycle Bin. If you need to keep the old file, it is recommended to download it before replacing it with the new file. The extension of the new file should be same as the existing file. Otherwise, they will act as links two different files.

Let us know if this works for you.

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