AssetBundle.Contains 包含
function Contains (name : string) : bool
Description描述
Check if an AssetBundle contains a specific object.
如果AssetBundle的名称中包含特定的对象则进行检索。
Returns true if an object referred to by name is contained in the AssetBundle, false otherwise.
如果有此名字的对象被包含在AssetBundle中则返回真，否则返回假。
