{"id":29972,"date":"2024-02-15T14:55:03","date_gmt":"2023-06-05T10:36:15","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8python%e4%b8%ad%e7%9a%84mongodb%e5%af%b9%e8%b1%a1%e6%96%87%e6%a1%a3%e6%98%a0%e5%b0%84odm%e8%bf%9b%e8%a1%8c%e6%93%8d%e4%bd%9c%e3%80%82\/"},"modified":"2025-08-12T16:50:48","modified_gmt":"2025-08-12T08:50:48","slug":"%e4%bd%bf%e7%94%a8python%e4%b8%ad%e7%9a%84mongodb%e5%af%b9%e8%b1%a1%e6%96%87%e6%a1%a3%e6%98%a0%e5%b0%84odm%e8%bf%9b%e8%a1%8c%e6%93%8d%e4%bd%9c%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8python%e4%b8%ad%e7%9a%84mongodb%e5%af%b9%e8%b1%a1%e6%96%87%e6%a1%a3%e6%98%a0%e5%b0%84odm%e8%bf%9b%e8%a1%8c%e6%93%8d%e4%bd%9c%e3%80%82\/","title":{"rendered":"\u4f7f\u7528Python\u4e2d\u7684MongoDB\u5bf9\u8c61\u6587\u6863\u6620\u5c04(ODM)\u8fdb\u884c\u64cd\u4f5c"},"content":{"rendered":"

\u6807\u9898\u524d\u7684\u4fe1\u606f<\/p>\n

\u8fd9\u7bc7\u6587\u7ae0\u662fPython\u5165\u95e8MongoDB\u7cfb\u5217\u7684\u7eed\u7bc7\uff0c\u4f46\u5373\u4f7f\u6ca1\u6709\u9605\u8bfb\u524d\u4e00\u7bc7\u6587\u7ae0\uff0c\u4e5f\u53ef\u4ee5\u7406\u89e3\u5176\u5185\u5bb9\u7684\u7ed3\u6784\u3002
\n\u5982\u679c\u5bf9MongoDB\u611f\u5174\u8da3\u7684\u8bdd\uff0c\u5e0c\u671b\u4f60\u80fd\u4e00\u76f4\u966a\u4f34\u5230\u6700\u540e\u3002<\/p>\n

\u73af\u5883\u5efa\u8bbe<\/p>\n

MongoDB – \u65e0\u7ed3\u6784\u5316\u7684\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf<\/p>\n

\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528Docker\u8fdb\u884c\u73af\u5883\u642d\u5efa\u3002
\n\u5982\u679c\u60a8\u60f3\u76f4\u63a5\u5728\u672c\u5730\u5b89\u88c5MongoDB\uff0c\u8bf7\u53c2\u8003\u524d\u4e00\u7bc7\u6587\u7ae0\u3002<\/p>\n

version<\/span>:<\/span> '<\/span>3.1'<\/span>\r\n\r\nservices<\/span>:<\/span>\r\n\r\n  mongo<\/span>:<\/span>\r\n    image<\/span>:<\/span> mongo<\/span>\r\n    restart<\/span>:<\/span> always<\/span>\r\n    ports<\/span>:<\/span>\r\n      -<\/span> 27017:27017<\/span>      \r\n    environment<\/span>:<\/span>\r\n      MONGO_INITDB_ROOT_USERNAME<\/span>:<\/span> root<\/span>\r\n      MONGO_INITDB_ROOT_PASSWORD<\/span>:<\/span> example<\/span>\r\n\r\n  mongo-express<\/span>:<\/span>\r\n    image<\/span>:<\/span> mongo-express<\/span>\r\n    restart<\/span>:<\/span> always<\/span>\r\n    ports<\/span>:<\/span>\r\n      -<\/span> 8081:8081<\/span>\r\n    environment<\/span>:<\/span>\r\n      ME_CONFIG_MONGODB_ADMINUSERNAME<\/span>:<\/span> root<\/span>\r\n      ME_CONFIG_MONGODB_ADMINPASSWORD<\/span>:<\/span> example<\/span>\r\n<\/code><\/pre>\n
\u6211\u8981\u542f\u52a8\u5bb9\u5668\u3002<\/p>\n
docker-compose up -d<\/span> mongo mongo-express\r\n<\/code><\/pre>\n
\n                            \"\u30ad\u30e3\u30d7\u30c1\u30e3.PNG\"<\/p>\n
Python\u662f\u4e00\u79cd\u9ad8\u7ea7\u7f16\u7a0b\u8bed\u8a00\u3002<\/p>\n
Python\u4f7f\u7528mongoengine\u5e93\u3002<\/p>\n
pip install mongoengine\r\n<\/code><\/pre>\n
\u6211\u5c06\u5c1d\u8bd5\u8fdb\u884c\u8fde\u63a5\u3002
\n\u6211\u5c06\u5c1d\u8bd5\u8fde\u63a5\u9ed8\u8ba4\u7684\u672c\u5730\u6570\u636e\u5e93\u3002<\/p>\n
from<\/span> mongoengine<\/span> import<\/span> connect<\/span>\r\n\r\nconnect<\/span>(<\/span>db<\/span>=<\/span>'local'<\/span>,<\/span>\r\n        username<\/span>=<\/span>\"root\"<\/span>,<\/span>\r\n        password<\/span>=<\/span>\"example\"<\/span>,<\/span>\r\n        host<\/span>=<\/span>'192.168.99.100'<\/span>,<\/span>\r\n        port<\/span>=<\/span>27017<\/span>,<\/span>\r\n        authentication_mechanism<\/span>=<\/span>'SCRAM-SHA-1'<\/span>,<\/span>\r\n        authentication_source<\/span>=<\/span>'admin'<\/span>\r\n        )<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u6267\u884c\u6ca1\u6709\u51fa\u9519\uff0c\u90a3\u5c31\u7b97\u6210\u529f\u4e86\u3002\u5173\u4e8e\u5176\u4ed6\u7684\u8fde\u63a5\u65b9\u6cd5\uff0c\u8bf7\u53c2\u8003\u8fd9\u91cc\uff0c\u8ba9\u6211\u4eec\u5f00\u59cb\u5b66\u4e60\u5982\u4f55\u7528Python\u64cd\u4f5cMongoDB\u5427\u3002<\/p>\n
MongoDB\u7684\u5bf9\u8c61\u6587\u6863\u6620\u5c04<\/p>\n
ODM\u662f\u6307\u5bf9\u8c61\u6587\u6863\u6620\u5c04\uff0c\u5b57\u9762\u4e0a\u6765\u8bf4\u5c31\u662f\u5c06\u5bf9\u8c61\u6620\u5c04\u5230\u7c7b\u4f3cMongoDB\u7684\u6587\u6863\u6570\u636e\u5e93\u4e2d\u3002
\n\u4f7f\u7528ODM\u7684\u597d\u5904\u662f\u53ef\u4ee5\u7ea6\u675f\u6570\u636e\u7684\u7ed3\u6784\u3002<\/p>\n
\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u5b9e\u9645\u7684\u4f8b\u5b50\u3002<\/p>\n
\r\nfrom<\/span> mongoengine<\/span> import<\/span> connect<\/span>,<\/span> Document<\/span>,<\/span> EmbeddedDocument<\/span>,<\/span> \\\r\n    StringField<\/span>,<\/span> IntField<\/span>,<\/span> DateTimeField<\/span>,<\/span> ListField<\/span>,<\/span> EmbeddedDocumentField<\/span>\r\nfrom<\/span> datetime<\/span> import<\/span> datetime<\/span>\r\n\r\nconnect<\/span>(<\/span>db<\/span>=<\/span>'company'<\/span>,<\/span>\r\n        username<\/span>=<\/span>\"root\"<\/span>,<\/span>\r\n        password<\/span>=<\/span>\"example\"<\/span>,<\/span>\r\n        host<\/span>=<\/span>'192.168.99.100'<\/span>,<\/span>\r\n        port<\/span>=<\/span>27017<\/span>,<\/span>\r\n        authentication_mechanism<\/span>=<\/span>'SCRAM-SHA-1'<\/span>,<\/span>\r\n        authentication_source<\/span>=<\/span>'admin'<\/span>\r\n        )<\/span>\r\n\r\n\r\nclass<\/span> Employee<\/span>(<\/span>EmbeddedDocument<\/span>):<\/span>\r\n    \"\"\"\r\n        \u793e\u54e1\u8a73\u7d30\r\n    \"\"\"<\/span>\r\n    name<\/span> =<\/span> StringField<\/span>(<\/span>required<\/span>=<\/span>True<\/span>)<\/span>\r\n    age<\/span> =<\/span> IntField<\/span>(<\/span>required<\/span>=<\/span>False<\/span>)<\/span>\r\n\r\n\r\nSCALE_CHOICES<\/span> =<\/span> (<\/span>\r\n    (<\/span>\"venture\"<\/span>,<\/span> \"\u30d9\u30f3\u30c1\u30e3\u30fc\"<\/span>),<\/span>\r\n    (<\/span>\"major\"<\/span>,<\/span> \"\u5927\u624b\"<\/span>)<\/span>\r\n)<\/span>\r\n\r\n\r\nclass<\/span> Company<\/span>(<\/span>Document<\/span>):<\/span>\r\n    \"\"\"\r\n        \u4f1a\u793e\u30e2\u30c7\u30eb\r\n    \"\"\"<\/span>\r\n    name<\/span> =<\/span> StringField<\/span>(<\/span>required<\/span>=<\/span>True<\/span>,<\/span> max_length<\/span>=<\/span>32<\/span>)<\/span>\r\n    scale<\/span> =<\/span> StringField<\/span>(<\/span>required<\/span>=<\/span>True<\/span>,<\/span> choices<\/span>=<\/span>SCALE_CHOICES<\/span>)<\/span>\r\n    created_at<\/span> =<\/span> DateTimeField<\/span>(<\/span>default<\/span>=<\/span>datetime<\/span>.<\/span>now<\/span>())<\/span>\r\n    members<\/span> =<\/span> ListField<\/span>(<\/span>EmbeddedDocumentField<\/span>(<\/span>Employee<\/span>))<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u60a8\u66fe\u7ecf\u4f7f\u7528Django\u548cSQLAlchemy\u6765\u5b9a\u4e49\u6a21\u578b\uff0c\u90a3\u4e48\u60a8\u4f1a\u5bf9\u8fd9\u4e2a\u914d\u7f6e\u611f\u5230\u719f\u6089\u3002
\n\u6211\u4eec\u5c06\u4f7f\u7528\u5b9e\u9645\u5b9a\u4e49\u7684\u6a21\u578b\u5c06\u6570\u636e\u5b58\u5165MongoDB\u3002
\n\u8bf7\u5c06\u4e0b\u9762\u7684\u4ee3\u7801\u9644\u52a0\u5230test.py\u4e2d\u5e76\u6267\u884c\u3002
\n\u60a8\u65e0\u9700\u9884\u5148\u521b\u5efa\u6d4b\u8bd5\u7528\u7684\u6570\u636e\u5e93\u3002<\/p>\n
\r\nclass<\/span> TestMongoEngine<\/span>:<\/span>\r\n    def<\/span> add_one<\/span>(<\/span>self<\/span>):<\/span>\r\n       c_obj<\/span> =<\/span> Company<\/span>(<\/span>\r\n           name<\/span>=<\/span>\"\u6709\u540d\u30d9\u30f3\u30c1\u30e3\u30fc\"<\/span>,<\/span>\r\n           scale<\/span>=<\/span>\"venture\"<\/span>,<\/span>\r\n       )<\/span>\r\n       c_obj<\/span>.<\/span>save<\/span>()<\/span>\r\n       return<\/span> c_obj<\/span>\r\n\r\n\r\nif<\/span> __name__<\/span> ==<\/span> \"__main__\"<\/span>:<\/span>\r\n        t<\/span> =<\/span> TestMongoEngine<\/span>()<\/span>\r\n        t<\/span>.<\/span>add_one<\/span>()<\/span>\r\n<\/code><\/pre>\n
\u4eceMongo Express\u4e2d\uff0c\u53ef\u4ee5\u786e\u8ba4\u6570\u636e\u5df2\u7ecf\u88ab\u63d2\u5165\u3002<\/p>\n
\n                            \"\u30ad\u30e3\u30d7\u30c1\u30e3.PNG\"<\/p>\n
\u5982\u679c\u60f3\u5728\u6a21\u578b\u5185\u90e8\u8fdb\u4e00\u6b65\u5b9a\u4e49\u7ed3\u6784\uff0c\u53ef\u4ee5\u4f7f\u7528EmbeddedDocumentField\uff0c\u56e0\u6b64\u5c06\u5c1d\u8bd5\u4f7f\u7528\u5b83\u3002<\/p>\n
\u6211\u4eec\u5c06\u4fee\u6539\u4e4b\u524d\u8ffd\u52a0\u5230test.py\u7684\u4ee3\u7801\uff0c\u5e76\u91cd\u65b0\u8fd0\u884c\u3002<\/p>\n
\r\nclass<\/span> TestMongoEngine<\/span>:<\/span>\r\n    def<\/span> add_one<\/span>(<\/span>self<\/span>):<\/span>\r\n       member1<\/span> =<\/span> Employee<\/span>(<\/span>\r\n               name<\/span>=<\/span>\"memberA\"<\/span>,<\/span>\r\n               age<\/span>=<\/span>40<\/span>,<\/span>\r\n       )<\/span>\r\n       member2<\/span> =<\/span> Employee<\/span>(<\/span>\r\n               name<\/span>=<\/span>\"memberB\"<\/span>,<\/span>\r\n               age<\/span>=<\/span>35<\/span>,<\/span>\r\n       )<\/span>\r\n       c_obj<\/span> =<\/span> Company<\/span>(<\/span>\r\n           name<\/span>=<\/span>\"\u6709\u540d\u30d9\u30f3\u30c1\u30e3\u30fcA\"<\/span>,<\/span>\r\n           scale<\/span>=<\/span>\"venture\"<\/span>,<\/span>\r\n           members<\/span>=<\/span>[<\/span>member1<\/span>,<\/span> member2<\/span>]<\/span>\r\n       )<\/span>\r\n       c_obj<\/span>.<\/span>save<\/span>()<\/span>\r\n       return<\/span> c_obj<\/span>\r\n\r\n\r\nif<\/span> __name__<\/span> ==<\/span> \"__main__\"<\/span>:<\/span>\r\n        t<\/span> =<\/span> TestMongoEngine<\/span>()<\/span>\r\n        t<\/span>.<\/span>add_one<\/span>()<\/span>\r\n<\/code><\/pre>\n
\n                            \"\u30ad\u30e3\u30d7\u30c1\u30e3.PNG\"<\/p>\n
\u4f7f\u7528ODM\u8fdb\u884cCRUD\u64cd\u4f5c<\/p>\n
\u7531\u4e8e\u4e0a\u8ff0\u7684C\uff08Create\uff09\u4f8b\u5b50\u5df2\u7ecf\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u4f8b\u5b50\u4ecb\u7ecd\u4e86\u65b0\u7684\u6dfb\u52a0\u65b9\u6cd5\uff0c\u6240\u4ee5\u73b0\u5728\u6211\u4eec\u5c06\u4ece\u6570\u636e\u52a0\u8f7d\u5f00\u59cb\u7ee7\u7eed\u4ecb\u7ecd\u3002<\/p>\n
\u8bfb\u53d6\u6570\u636e<\/p>\n
\u5355\u4e00\u52a0\u8f7d<\/p>\n
\u4ece\u5148\u524d\u65b0\u6dfb\u52a0\u7684\u6570\u636e\u5e93\u4e2d\u8bfb\u53d6\u4e00\u6761\u6570\u636e\u3002<\/p>\n
...<\/span>\r\nclass<\/span> TestMongoEngine<\/span>:<\/span> \r\n    def<\/span> get_one<\/span>(<\/span>self<\/span>):<\/span>\r\n        return<\/span> Company<\/span>.<\/span>objects<\/span>.<\/span>first<\/span>()<\/span>\r\n\r\nif<\/span> __name__<\/span> ==<\/span> \"__main__\"<\/span>:<\/span>\r\n        t<\/span> =<\/span> TestMongoEngine<\/span>()<\/span>\r\n        rest<\/span> =<\/span> t<\/span>.<\/span>get_one<\/span>()<\/span>\r\n        print<\/span>(<\/span>rest<\/span>.<\/span>id<\/span>)<\/span>\r\n        print<\/span>(<\/span>rest<\/span>.<\/span>name<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u7ed3\u679c<\/p>\n
\r\n5e7ed47419d1a75baa2bc3f3\r\n\u6709\u540d\u30d9\u30f3\u30c1\u30e3\u30fc\r\n<\/code><\/pre>\n
\u5b8c\u5168\u52a0\u8f7d<\/p>\n
...<\/span>\r\nclass<\/span> TestMongoEngine<\/span>:<\/span>\r\n    def<\/span> get_more<\/span>(<\/span>self<\/span>):<\/span>\r\n        return<\/span> Company<\/span>.<\/span>objects<\/span>.<\/span>all<\/span>()<\/span>\r\n\r\nif<\/span> __name__<\/span> ==<\/span> \"__main__\"<\/span>:<\/span>\r\n        t<\/span> =<\/span> TestMongoEngine<\/span>()<\/span>\r\n        rest<\/span> =<\/span> t<\/span>.<\/span>get_more<\/span>()<\/span>\r\n        print<\/span>(<\/span>rest<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u7b54\u6848<\/p>\n
[<\/span><Company: Company object>, <Company: Company object>, <Company: Company object>]\r\n<\/code><\/pre>\n
\u901a\u8fc7id\u641c\u7d22\u8fdb\u884c\u8bfb\u53d6<\/p>\n
...<\/span>\r\nclass<\/span> TestMongoEngine<\/span>:<\/span>\r\n      def<\/span> get_from_oid<\/span>(<\/span>self<\/span>,<\/span> oid<\/span>):<\/span>\r\n          return<\/span> Company<\/span>.<\/span>objects<\/span>.<\/span>filter<\/span>(<\/span>pk<\/span>=<\/span>oid<\/span>).<\/span>first<\/span>()<\/span>\r\n\r\nif<\/span> __name__<\/span> ==<\/span> \"__main__\"<\/span>:<\/span>\r\n        t<\/span> =<\/span> TestMongoEngine<\/span>()<\/span>\r\n        rest<\/span> =<\/span> t<\/span>.<\/span>get_from_oid<\/span>(<\/span>\"5e7ed47419d1a75baa2bc3f3\"<\/span>)<\/span>\r\n        print<\/span>(<\/span>rest<\/span>.<\/span>id<\/span>)<\/span>\r\n        print<\/span>(<\/span>rest<\/span>.<\/span>name<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u7ed3\u679c<\/p>\n
5e7ed47419d1a75baa2bc3f3\r\n\u6709\u540d\u30d9\u30f3\u30c1\u30e3\u30fc\r\n<\/code><\/pre>\n
\u586b\u88dc\u4e0d\u8db3<\/p>\n
\u5982\u679c\u60f3\u8981\u5728\u8bfb\u53d6\u6570\u636e\u65f6\u5bf9\u987a\u5e8f\u8fdb\u884c\u6392\u5217\uff0c\u53ef\u4ee5\u5c06\u5143\u6570\u636e\u6dfb\u52a0\u5230\u516c\u53f8\u6a21\u578b\u4e2d\u3002<\/p>\n
class<\/span> Company<\/span>(<\/span>Document<\/span>):<\/span>\r\n    \"\"\"\r\n        \u4f1a\u793e\u30e2\u30c7\u30eb\r\n    \"\"\"<\/span>\r\n    name<\/span> =<\/span> StringField<\/span>(<\/span>required<\/span>=<\/span>True<\/span>,<\/span> max_length<\/span>=<\/span>32<\/span>)<\/span>\r\n    scale<\/span> =<\/span> StringField<\/span>(<\/span>required<\/span>=<\/span>True<\/span>,<\/span> choices<\/span>=<\/span>SCALE_CHOICES<\/span>)<\/span>\r\n    created_at<\/span> =<\/span> DateTimeField<\/span>(<\/span>default<\/span>=<\/span>datetime<\/span>.<\/span>now<\/span>())<\/span>\r\n    members<\/span> =<\/span> ListField<\/span>(<\/span>EmbeddedDocumentField<\/span>(<\/span>Employee<\/span>))<\/span>\r\n    meta<\/span> =<\/span> {<\/span>\r\n        'ordering'<\/span>:<\/span> [<\/span>'-created_at'<\/span>]<\/span>  # meta\u3092\u8ffd\u8a18\r\n<\/span>    }<\/span>\r\n<\/code><\/pre>\n
\u6587\u4ef6<\/p>\n
\u6570\u636e\u66f4\u65b0<\/p>\n
\u4ec5\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff1a\u5355\u4e00\u6570\u636e\u4fee\u6b63<\/p>\n
...<\/span>\r\nclass<\/span> TestMongoEngine<\/span>:<\/span>\r\n    def<\/span> update<\/span>(<\/span>self<\/span>):<\/span>\r\n        rest<\/span> =<\/span> Company<\/span>.<\/span>objects<\/span>.<\/span>filter<\/span>(<\/span>name<\/span>=<\/span>\"\u6709\u540d\u30d9\u30f3\u30c1\u30e3\u30fc\"<\/span>).<\/span>update_one<\/span>(<\/span>name<\/span>=<\/span>\"\u666e\u901a\u306e\u30d9\u30f3\u30c1\u30e3\u30fc\"<\/span>)<\/span>\r\n        return<\/span> rest<\/span>\r\n\r\nif<\/span> __name__<\/span> ==<\/span> \"__main__\"<\/span>:<\/span>\r\n        t<\/span> =<\/span> TestMongoEngine<\/span>()<\/span>\r\n        rests<\/span> =<\/span> t<\/span>.<\/span>update<\/span>()<\/span>\r\n<\/code><\/pre>\n
\n                            \"\u30ad\u30e3\u30d7\u30c1\u30e3.PNG\"<\/p>\n
\u591a\u4e2a\u6570\u636e\u4fee\u6539<\/p>\n
\n                            \"\u30ad\u30e3\u30d7\u30c1\u30e3.PNG\"<\/p>\n
class<\/span> TestMongoEngine<\/span>:<\/span>\r\n    def<\/span> update<\/span>(<\/span>self<\/span>):<\/span>\r\n        rest<\/span> =<\/span> Company<\/span>.<\/span>objects<\/span>.<\/span>filter<\/span>(<\/span>name<\/span>=<\/span>\"\u6709\u540d\u30d9\u30f3\u30c1\u30e3\u30fcA\"<\/span>).<\/span>update<\/span>(<\/span>name<\/span>=<\/span>\"\u6709\u540d\u30d9\u30f3\u30c1\u30e3\u30fcB\"<\/span>)<\/span>\r\n        return<\/span> rest<\/span>\r\n\r\nif<\/span> __name__<\/span> ==<\/span> \"__main__\"<\/span>:<\/span>\r\n        t<\/span> =<\/span> TestMongoEngine<\/span>()<\/span>\r\n        rests<\/span> =<\/span> t<\/span>.<\/span>update<\/span>()<\/span>\r\n        print<\/span>(<\/span>rests<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u6267\u884c\u7ed3\u679c<\/p>\n
2\r\n<\/code><\/pre>\n
\n                            \"\u30ad\u30e3\u30d7\u30c1\u30e3.PNG\"<\/p>\n
\u5220\u9664\u6570\u636e<\/p>\n
\u5220\u9664\u5355\u4e2a\u6570\u636e<\/p>\n
class<\/span> TestMongoEngine<\/span>:<\/span>\r\n    def<\/span> delete<\/span>(<\/span>self<\/span>):<\/span>\r\n        rest<\/span> =<\/span> Company<\/span>.<\/span>objects<\/span>.<\/span>filter<\/span>(<\/span>name<\/span>=<\/span>\"\u666e\u901a\u306e\u30d9\u30f3\u30c1\u30e3\u30fc\"<\/span>).<\/span>first<\/span>().<\/span>delete<\/span>()<\/span>\r\n        return<\/span> rest<\/span>\r\n\r\nif<\/span> __name__<\/span> ==<\/span> \"__main__\"<\/span>:<\/span>\r\n        t<\/span> =<\/span> TestMongoEngine<\/span>()<\/span>\r\n        rests<\/span> =<\/span> t<\/span>.<\/span>delete<\/span>()<\/span>\r\n        print<\/span>(<\/span>rests<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u6267\u884c\u5b8c\u6210\u540e<\/p>\n
\n                            \"\u30ad\u30e3\u30d7\u30c1\u30e3.PNG\"<\/p>\n
\u5220\u9664\u591a\u4e2a\u6570\u636e<\/p>\n
\u6211\u5c06\u5220\u9664\u4e24\u4e2a\u5177\u6709\u77e5\u540d\u5ea6\u7684\u521b\u4e1a\u516c\u53f8B\u7684\u6570\u636e\u3002<\/p>\n
...<\/span>\r\nclass<\/span> TestMongoEngine<\/span>:<\/span>\r\n    def<\/span> delete<\/span>(<\/span>self<\/span>):<\/span>\r\n        rest<\/span> =<\/span> Company<\/span>.<\/span>objects<\/span>.<\/span>filter<\/span>(<\/span>name<\/span>=<\/span>\"\u6709\u540d\u30d9\u30f3\u30c1\u30e3\u30fcB\"<\/span>).<\/span>delete<\/span>()<\/span>\r\n        return<\/span> rest<\/span>\r\n\r\nif<\/span> __name__<\/span> ==<\/span> \"__main__\"<\/span>:<\/span>\r\n        t<\/span> =<\/span> TestMongoEngine<\/span>()<\/span>\r\n        rests<\/span> =<\/span> t<\/span>.<\/span>delete<\/span>()<\/span>\r\n        print<\/span>(<\/span>rests<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u6267\u884c\u7ed3\u679c<\/p>\n
2\r\n<\/code><\/pre>\n
\u4eceMongo Express\u4e2d\u786e\u8ba4\uff0cCompanyDB\u4e2d\u7684\u6240\u6709\u6570\u636e\u90fd\u88ab\u5220\u9664\u4e86\u3002<\/p>\n
\u5c3e\u8072<\/p>\n
\u82e5\u6709\u65f6\u95f4\uff0c\u6211\u6253\u7b97\u5199\u4e00\u7bc7\u5173\u4e8e\u4f7f\u7528Flask\u548cMongoDB\u521b\u5efaWeb\u670d\u52a1\u7684\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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