我有一个具有三个深度级别的数据模型。varjob=mongoose.Schema({id:Number,jobName:String});vardemo=mongoose.Schema({id:Number,demoName:String,job:[job]});varExerciseSchema=mongoose.Schema({id:Number,name:String,area:String,medicalObj:[demo]});varExercise=mongoose.model('Exercise',ExerciseSchema);我想把新对象压入第二个嵌套数组我正在尝试这