unity 里写一个一键打包脚本，使导出的工程包里有libil2cpp.so文件

好的，以下是一个简单的一键打包脚本，可以在 Unity 中使用。该脚本会在导出的工程包中包含 libil2cpp.so 文件：

using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEditor.Build.Reporting;
using UnityEngine;

public class BuildScript : MonoBehaviour
{
    [MenuItem("Build/Build Android")]
    public static void BuildAndroid()
    {
        // Set the path to the Android SDK and JDK
        EditorPrefs.SetString("AndroidSdkRoot", "/path/to/android-sdk");
        EditorPrefs.SetString("JdkPath", "/path/to/jdk");

        // Set the build target to Android
        BuildTarget target = BuildTarget.Android;

        // Set the output path for the APK
        string outputPath = "Builds/Android.apk";

        // Build the player
        BuildPlayerOptions options = new BuildPlayerOptions();
        options.scenes = new[] { "Assets/Scenes/Main.unity" };
        options.target = target;
        options.locationPathName = outputPath;
        options.options = BuildOptions.AcceptExternalModificationsToPlayer;

        BuildReport report = BuildPipeline.BuildPlayer(options);

        // Check for errors
        if (report.summary.result == BuildResult.Succeeded)
        {
            Debug.Log("Build succeeded: " + outputPath);

            // Copy the libil2cpp.so file to the output directory
            string buildDirectory = report.summary.outputPath;
            string libil2cppPath = buildDirectory + "/lib/arm64-v8a/libil2cpp.so";
            string outputPathWithLib = outputPath.Replace(".apk", "-with-lib.so");

            FileUtil.CopyFileOrDirectory(libil2cppPath, outputPathWithLib);
        }
        else
        {
            Debug.Log("Build failed");
        }
    }
}

请注意，这个脚本假定您的项目已经设置了正确的 Android SDK 和 JDK 路径。如果您的路径不同，请根据需要更改 `AndroidSdkRoot` 和 `JdkPath` 的值。

此外，该脚本还假定您的项目使用IL2CPP作为脚本后端。如果您正在使用Mono，请将 `libil2cpp.so` 的路径更改为 `buildDirectory + "/lib/armeabi-v7a/libunity.so"`。

希望这可以帮助您完成您的任务！