Stores and accesses player preferences between game sessions.
Editor/Standalone
On macOS PlayerPrefs are stored in ~/Library/Preferences folder, in a file named unity.[company name].[product name].plist, where company and product names are the names set up in Project Settings. The same .plist file is used for both Projects run in the Editor and standalone players.
On Windows, PlayerPrefs are stored in the registry under HKCU\Software\[company name]\[product name] key, where company and product names are the names set up in Project Settings.
如果发布的是windows EXE会把数据写在注册表中。
On Linux, PlayerPrefs can be found in ~/.config/unity3d/[CompanyName]/[ProductName] again using the company and product names specified in the Project Settings.
On Windows Store Apps, Player Prefs can be found in %userprofile%\AppData\Local\Packages\[ProductPackageId]>\LocalState\playerprefs.dat
On Windows Phone 8, Player Prefs can be found in application's local folder, See Also: Directory.localFolder
On Android data is stored (persisted) on the device. The data is saved in ShaderPreferences. C#/JavaScript, Android Java and Native code can all access the PlayerPrefs data. The PlayerPrefs data is physically stored in /data/data/pkg-name/shared_prefs/pkg-name.xml.
On WebGL, PlayerPrefs are stored using the browser's IndexedDB API.
如果发布的是webgl 会把数据写在浏览器数据中