Unity3d--Platform macro definition

Official Document URL: https://docs.unity3d.com/Manual/PlatformDependentCompilation.html

This article is translated from the official documentation

Property

:	Function:
Unity_editor	Unity Editor
Unity_editor_win	Windows operating system.
Unity_editor_osx	MacOS Operating System
Unity_standalone_osx	Defined specifically for MacOS (including Universal, Ppc,intel architectures) platform
Unity_standalone_win	Specifically for the Windows platform definition
Unity_standalone_linux	Specifically for the Linux platform definition
Unity_standalone	Standalone platform (Mac OS X, Windows or Linux).
Unity_wii	WII Console Platform
Unity_ios	iOS system Platform
Unity_iphone	Iphone
Unity_android	Android System Platform
Unity_ps4	PS4 platform
Unity_samsungtv	Samsung TV Platform
Unity_xboxone	Xbox One Platform
Unity_tizen	Tizen Platform
Unity_tvos	Apple TV Platform
Unity_wsa	#define directive for Universal Windows Platform. Additionally, Netfx_core is defined when compiling C # files against. NET CORE and using. NET Scripting backend.
Unity_wsa_10_0	#define directive for Universal Windows Platform. Additionally WINDOWS_UWP is defined when compiling C # files against. NET Core.
Unity_winrt	Unity_wsa.
Unity_winrt_10_0	Unity_wsa_10_0
Unity_webgl	#define directive for WebGL.
Unity_facebook	Facebook Platform (WebGL or Windows standalone).
Unity_ads	Call ad method, version 5.2 later
Unity_analytics	Call the Unity Analytics service after version 5.2
Unity_assertions	The process of controlling instructions

UNITY Version Determination method: Unity_x,unity_x_y,unity_x_y_z For example:

Unity_5	Unity5 version, including all 5.X.Y versions
Unity_5_0	Unity5.0 version, including all 5.0.x versions
Unity_5_0_1	Unity5.0.1 version

When packaging, select File > Build settings and then display the Platform selection screen.

code example C #:

C #
using Unityengine;
Using System.Collections;

public class Platformdefines:monobehaviour {
  void Start () {

    #if unity_editor
      Debug.Log ("UNITY EDITOR"); c7/> #endif
    
    #if unity_ios
      Debug.Log ("Iphone");
    #endif

    #if unity_standalone_osx
    Debug.Log ("Stand Alone OSX");
    #endif

    #if unity_standalone_win
      Debug.Log ("Stand Alone Windows");
    #endif

  }          
}

You can use # if #elif

#if unity_editor
    Debug.Log ("UNITY EDITOR");

#elif Unity_ios
    Debug.Log ("UNITY iPhone");

#else
    Debug.Log ("Any other platform");

#endif

You can customize the macro definition, open the other Settings window, select player Settings > Scripting Define Symbols