{
"_id": ObjectId("61ea7e9da9d1ce8814002d17"),
"name": "雷",
"age": 39,
"products": [
{
"name": "测试产品1",
"size": [
ObjectId("622f0f71a9d1ce74b4001512"),
ObjectId("622f0f8aa9d1ce74b4001513")
]
},
{
"name": "测试产品2",
"size": [
ObjectId("622f0f71a9d1ce74b4001512")
]
}
]
}
上面是student
product_size
{
"_id": ObjectId("622f0f71a9d1ce74b4001512"),
"name": "15寸"
}
{
"_id": ObjectId("622f0f8aa9d1ce74b4001513"),
"name": "17寸"
}