此外，您还将学习如何在MongoDB中使用GridFS存储大文件。
In addition, you'll also learn how you can store large files in MongoDB using GridFS.
BSON文档的最大大小是4 MB，这不适合存储大文件和对象。
The maximum size of a BSON document is 4mb however, which makes them unsuitable for storing large files and objects.
MongoDB通过将文件划分为多个文档之间的较小块，使用GridFS规范来存储大文件。
MongoDB USES the GridFS specification to store large files, by dividing the file into smaller chunks among multiple documents.
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