示例MongoDB错误对象是什么样的？我想根据错误来“处理”错误和/或为自己的目的重新格式化错误.
{ "name":"MongoError","err":"E11000 duplicate key error index: test.test.$country_1 dup key: { : \"XYZ\" }","code":11000,"n":0,"connectionId":10706,"ok":1 }
