nodejs之mongoose数据类型Schema.type

现将mongoose中Schema涉及的数据类型Schema.type举例如下：

//举例：var ExampleSchema = new Schema({      name:String,      binary:Buffer,      living:Boolean,      updated:Date,      age:Number,      mixed:Schema.Types.Mixed, //该混合类型等同于nested      _id:Schema.Types.ObjectId,  //主键      _fk:Schema.Types.ObjectId,  //外键      array:[],      arrOfString:[String],      arrOfNumber:[Number],      arrOfDate:[Date],      arrOfBuffer:[Buffer],      arrOfBoolean:[Boolean],      arrOfMixed:[Schema.Types.Mixed],      arrOfObjectId:[Schema.Types.ObjectId]      nested:{        stuff:String,      } });