unity每次编辑代码的时候，都需要保存，unity右下角的小圆圈总是转个不停，那么每次编辑代码后，unity到底需要多久时间呢，下面就有代码可以获取 保存时间。

using UnityEngine;
using UnityEditor;
using UnityEditor.Compilation;

[InitializeOnLoad]
public static class GetInitEditorTime 
{
    private static double _startTime;
  static  GetInitEditorTime()
    {
        CompilationPipeline.compilationStarted += OnCompilationStarted;
        CompilationPipeline.compilationFinished += OnCompilationFinished;
    }

    static void OnCompilationStarted(object obj)
    {
        _startTime = EditorApplication.timeSinceStartup;
    }

    static void OnCompilationFinished(object obj)
    {
        double elapsedTime = EditorApplication.timeSinceStartup - _startTime;
        Debug.Log($" script save time：{elapsedTime:F2} s"); 
    }
}

保存结束的时候就可以打印保存的时间。