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獲得子文件價值如何從以下BSON文檔我如何從以下BSON文檔
{
"_id" : ObjectId("52415e45ccf279207b91a2a0"),
"created" : ISODate("2013-09-24T09:41:25.760Z"),
"creator" : "52415e45ccf279207b91a29e",
"description" : "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
"lastModif" : ISODate("2013-09-24T09:41:25.760Z"),
"title" : "My post title",
"comments" : [
{
"title" : "Comment 1",
"content" : "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
"created" : ISODate("2013-09-24T09:41:25.764Z"),
"lastModif" : ISODate("2013-09-24T09:41:25.764Z"),
"creator" : "52415e45ccf279207b91a2a3",
"_id" : ObjectId("52415e45ccf279207b91a2a1")
},
{
"title" : "Comment 2",
"content" : "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
"created" : ISODate("2013-09-24T09:41:25.764Z"),
"lastModif" : ISODate("2013-09-24T09:41:25.764Z"),
"creator" : "52415e45ccf279207b91a2a3",
"_id" : ObjectId("52415e45ccf279207b91a29f")
},
{
"title" : "Comment 3",
"content" : "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
"created" : ISODate("2013-09-24T09:41:25.764Z"),
"lastModif" : ISODate("2013-09-24T09:41:25.764Z"),
"creator" : "52415e45ccf279207b91a2a3",
"_id" : ObjectId("52415e45ccf279207b91a287")
}
...
]
}
獲得子文件價值需要得到地方title='Comment 1'
的子文件。
任何人都可以幫助我。
這是偉大的parvin。 – Balu
不客氣。 –