在mgo中查询字符串数组

collection.Find(bson.M{"field": bson.M{"$in": []string{"value1", "value2", "value3"}}})

package main

import (
    "fmt"
    "gopkg.in/mgo.v2"
    "gopkg.in/mgo.v2/bson"
)

type Person struct {
    Name   string
    Colors []string
}

func main() {
    session, err := mgo.Dial("mongodb://localhost")
    if err != nil {
        panic(err)
    }
    defer session.Close()

    c := session.DB("test").C("people")

    // 查询颜色为"red"或"blue"的人
    query := c.Find(bson.M{"colors": bson.M{"$in": []string{"red", "blue"}}})

    var results []Person
    err = query.All(&results)
    if err != nil {
        panic(err)
    }

    for _, person := range results {
        fmt.Println(person.Name)
    }
}