db.flightData.find()。pretty() { “ _id”:2 “ DepartureAirport”:“ DLI”, “ ArrivalAirport”:“ MUM”, “飞机”:“ AirIndia A380”, “距离”:10000, “洲际”:true } { “ _id”:3, “ DepartureAirport”:“ HYD”, “ ArrivalAirport”:“ DLI”, “飞机”:“ AirIndia A320”, “距离”:10000, “洲际”:false } { “ _id”:1 “ DepartureAirport”:“ DLI”, “到达机场”:“ HYD”, “飞机”:“ AirIndia A380”, “距离”:10000, “洲际”:true }