mongodb 的 inplace update

When the nested object is a hash object:

db.getCollection('some').update(
{ _id : Object('dfff')}, // query condition
{$set : { "embedded.field001":333}}

}

if When the nested object is an array, use the form of <array>.$.field
db.getCollection('some').update(
{ "embeddedArray.id":11}, // query condition
{$set : { "embeddedArray. $.field001":333}}

}