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Python pymongo/mongodb：查询mongodb对象数组中的元素_Python_Mongodb - Fatal编程技术网
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Python pymongo/mongodb：查询mongodb对象数组中的元素

python mongodb

Python pymongo/mongodb：查询mongodb对象数组中的元素,python,mongodb,Python,Mongodb,如果我想查询数组中的字段，我可以这样做 students.find({'name':{$in:['Mark','Jerry']}}) 但是如果我想在mongodb对象数组中找到一个字符串，比如 { "name":"Jerry", "classes":["math","english","nature"] } 如何查询此mongodb对象的classes数组中是否有类名“science” 谢谢只是： db.students.find({'classes': 'science'}) 只

如果我想查询数组中的字段，我可以这样做

students.find({'name':{$in:['Mark','Jerry']}})
但是如果我想在mongodb对象数组中找到一个字符串，比如

{
  "name":"Jerry",
  "classes":["math","english","nature"]
}
如何查询此mongodb对象的classes数组中是否有类名“science”

谢谢

只是：

db.students.find({'classes': 'science'})
只是：

db.students.find({'classes': 'science'})