我是flatBuffers的新手，但不幸的是，Google Tutorial并不十分清楚，所以这是我的问题：

• 是否可以在不使用表的情况下在flatBuffer Union中具有多个对象实例？
• 如果是，如何检索它们？

我根据教程尝试了以下代码：

import os
import sys
sys.path.append(os.path.join(os.path.dirname(__file__),'../python'))

import flatbuffers
import MyGame.Sample.Color
import MyGame.Sample.Equipment
import MyGame.Sample.Monster
import MyGame.Sample.Vec3
import MyGame.Sample.Weapon

# Example of how to use flatBuffers to create and read binary buffers.

def main():
  builder = flatbuffers.Builder(0)

  # Create some weapons for our Monster ('Sword' and 'Axe').
  weapon_one = builder.CreateString('Sword')
  weapon_two = builder.CreateString('Axe')

  MyGame.Sample.Weapon.WeaponStart(builder)
  MyGame.Sample.Weapon.WeaponAddName(builder,weapon_one)
  MyGame.Sample.Weapon.WeaponAddDamage(builder,3)
  sword = MyGame.Sample.Weapon.WeaponEnd(builder)

  MyGame.Sample.Weapon.WeaponStart(builder)
  MyGame.Sample.Weapon.WeaponAddName(builder,weapon_two)
  MyGame.Sample.Weapon.WeaponAddDamage(builder,5)
  axe = MyGame.Sample.Weapon.WeaponEnd(builder)

  # Serialize the flatBuffer data.
  name = builder.CreateString('Orc')

  MyGame.Sample.Monster.MonsterStartInventoryVector(builder,10)
  # Note: Since we prepend the bytes,this loop iterates in reverse order.
  for i in reversed(range(0,10)):
    builder.PrependByte(i)
  inv = builder.EndVector(10)

  MyGame.Sample.Monster.MonsterStartWeaponsVector(builder,2)
  # Note: Since we prepend the data,prepend the weapons in reverse order.
  builder.PrependUOffsetTRelative(axe)
  builder.PrependUOffsetTRelative(sword)
  weapons = builder.EndVector(2)

  pos = MyGame.Sample.Vec3.CreateVec3(builder,1.0,2.0,3.0)

  MyGame.Sample.Monster.MonsterStart(builder)
  MyGame.Sample.Monster.MonsterAddPos(builder,pos)
  MyGame.Sample.Monster.MonsterAddHp(builder,300)
  MyGame.Sample.Monster.MonsterAddName(builder,name)
  MyGame.Sample.Monster.MonsterAddInventory(builder,inv)
  MyGame.Sample.Monster.MonsterAddColor(builder,MyGame.Sample.Color.Color().Red)
  MyGame.Sample.Monster.MonsterAddWeapons(builder,weapons)
  # Equiping the first Weapon
  MyGame.Sample.Monster.MonsterAddEquippedType(
      builder,MyGame.Sample.Equipment.Equipment().Weapon)
  MyGame.Sample.Monster.MonsterAddEquipped(builder,axe)
  # Equiping the second Weapon
  MyGame.Sample.Monster.MonsterAddEquippedType(
      builder,sword)
  orc = MyGame.Sample.Monster.MonsterEnd(builder)

  builder.Finish(orc)

以下代码不会产生错误，但是在读取数据时，似乎只能获取最后添加的武器（该变量被覆盖）。那是预期的行为吗？

谢谢：）