0
{
"_id":123456,
"Menu":[{
"Dish":"Apple pie",
"Rating": "Good",
"Method": "Oven Baked"
},
{
"Dish":"Pumpkin Pie",
"Rating": "Bad",
"Method": "Baked"
},
{
"Dish":"Tomato Soup",
"Rating": "Good",
"Method": "Boiled"
}]
如何查询这个数组,如果我只想显示领域的“法”的价值观?
如何用Pymongo解决这个问题?
您可以使用您的查询'projection':HTTP:// API .mongodb.com /蟒/电流/ API/pymongo/collection.html?突出=投影#pymongo.collection.Collection.find – errata