ResourceSaver.save() just can save one element,i need help

[system]

	Attention	Topic was automatically imported from the old Question2Answer platform.
	Asked By	yuho170

i learn the video to create an item system,but something goes wrong.

i want to add item(resource) into the inventory Array(),but it can not work.

if i use ResourceSaver.save() ,it just only could save one data

---

extends Resource
class_name Inventory

signal item_changed()

export var items = Array() setget set_item,get_item

func set_item(item):
items = item

func get_item():
return items

func add_item(itemname):
var save1 = load(“res://inventory.tres”)
var item = ASDW.readitem(itemname)
items.append(item)
ResourceSaver.save(“res://inventory.tres”,item)