MongoDB-mongodb数组查询语法??

Question

{
  "_id" : "20121009_apicall",
  "key" : "apicall",
  "val" : {
    "GetCheckList" : 346506.0,
    "PutUrl" : 99073.0,
    "DayComplete" : 177248.0,
    "SumbitUserId" : 44402.0,
    "Login" : 35043.0,
    "RegisterEmail" : 15687.0,
    "sumbitEmail" : 178.0
  },
  "createDate" : NumberLong(20121009),
  "dateTime" : ISODate("2012-11-13T08:07:32Z")
}

Answer 1

查询数组中包含a和b的
db.col.find({"val.GetCheckList":{"$all":[346506,99073]}})
查询数组中包含a或者b的
db.col.find({"val.GetCheckList":{"$in":[346506,99073]}})