如果在asset商店里下載不了或下載失敗的，可以從這里拿。 Requires Unity 4.7.1 or higher. ATTN: When upgrading from an older version, it is best to first delete the SteamVR folder in your project, and then import the package. You may also want to delete any "openvr_api" files in your Plugins folder and its subfolders before im