Unity3d Judgment Platform

#ifUNITY_ANDROID
Debug.Log ("Android");
#endif

#if Unity_iphone
Debug.Log ("IOS");
#endif

#if Unity_standalone_win
Debug.Log ("WINDOWS");
#endif

In addition, the following platforms are supported

Unity_editor	Define for calling Unity Editor scripts from your game code.
unity_standalone_osx	platform define for Compiling/executing code specifically for Mac OS (this includes Universal, PPC and Intel architectures).
Unity_dashboard_widget	Platform define when creating code for MAC OS dashboard widgets.
Unity_standalone_win	The use of this is want to Compile/execute code for Windows stand alone applications.
Unity_standalone_linux	The use of this is want to Compile/execute code for Linux stand alone applications.
Unity_standalone	Use the Compile/execute code for any standalone platform (MAC, Windows or Linux).
Unity_webplayer	Platform define for Web player content (this includes Windows and MAC Web Player executables).
Unity_wii	Platform Define for compiling/executing code for the WII console.
Unity_iphone	Platform Define for compiling/executing code for the IPhone Platform.
Unity_android	Platform define for the Android Platform.
Unity_ps3	Platform define for running PlayStation 3 code.
unity_xbox360	Platform define for executing Xbox code.
unity_nacl	platform define when Compiling code for Google Native Client (this would be set additionally To UNITY_WEBPL AYER ).
Unity_flash	Platform define when compiling code for Adobe Flash.
Unity_blackberry	Platform define for a Blackberry10 device.
Unity_wp8	Platform define for Windows Phone 8.
Unity_metro	Platform define for Windows Store Apps (additionally Netfx_core are defined when compiling C # files against. NET C Ore).

Unity3d judgment on the platform