添加一条信息到列表，如果重复就替换，

const checkedSkuItems = await this.$refs.selectSku.onSelect()//新添加的数据

const orderDetails = deepClone(this.editShipOrderform.items)//已存在的数据列表

let repeatSkuIds = []//重复的数据

for (const index in orderDetails) {

const itemSku = checkedSkuItems.find(newItem => {

return orderDetails[index].skuId === newItem.skuId

})

if (itemSku) {

repeatSkuIds.push(itemSku.skuId)

if (orderDetails[index].id) {

this.editShipOrderform.deleteItemsIds.push(orderDetails[index].id)

}

orderDetails.splice(index, 1, itemSku)

}

}

const newSkuItems = checkedSkuItems.filter(newItem => {

return !repeatSkuIds.includes(newItem.skuId)

})