/// <summary>
/// 加载依赖的AB包并设置被依赖关系
/// </summary>
/// <param name="abName">当前包依赖的AB包名称</param>
/// <param name="refABName">当前的AB包名称</param>
/// <returns></returns>
private IEnumerator LoadReference(string abName, string refABName)
{
//如果AB包已经加载
if (_DicABRelation.ContainsKey(abName))
{
ABRelation tmpABRelationObj = _DicABRelation[abName];
//添加AB包引用关系（被依赖）
tmpABRelationObj.AddReference(refABName);
}
else
{
ABRelation tmpABRelationObj = new ABRelation(abName);
tmpABRelationObj.AddReference(refABName);
_DicABRelation.Add(abName, tmpABRelationObj);
//开始加载依赖的包(这是一个递归调用)
yield return(LoadAssetBundle(abName));
}
}
