ZhenShiXunYouJi2/Assets/Scripts/LevelSpriteAssetCollection.cs

using System;
using CIG;
using UnityEngine;

public sealed class LevelSpriteAssetCollection : ListAssetCollection<Sprite, LevelSpriteAssetCollection>
{
	public Sprite GetAsset(int level)
	{
		return base.GetAsset("upgrade_label_" + level.ToString("D2"));
	}
}