# Class: BackpackItemSwapEvent
• BackpackItemSwapEvent()
背包物品交换事件
# Properties
# Readonly
backpackId
• backpackId: number
所属背包 ID
Returns: number
# Readonly
swappedPositions
• swappedPositions: keyof []
对换的两个位置
Returns: keyof []
# Readonly
type
• type: Swap
Inherited from AccountDisplacedEvent.type
事件类型,由具体的事件构造时提供
Returns: Swap