Unity common path and get all files under the target path

Unity common path and get all files under the target path

1. Commonly used paths

Get the absolute path where the project is located

string _path;
System.Environment.CurrentDirectory(_path);
Directory.GetCurrentDirectory(_path); 

Application path

//数据持久化路径
Application.persistentDataPath
//Assets相对路径
Application.dataPath
//StreamingAssets外部加载路径
Application.StreamingAssets

 AssetDatabase path method

//获取 Assets 路径下和 ProjectSettings 路径下所有资源文件（不包括meta文件）
AssetDatabase.GetAllAssetPaths()

// 获得相对路径 参数为Object
AssetDatabase.GetAssetPath(Object)                  
AssetDatabase.GetAssetOrScenePath(SelectObject)   

// 根据相对路径获取该路径下的所有子文件夹 忽略.meta
string[] subFolders = AssetDatabase.GetSubFolders("Assets");
                 
               

2. Get all files under the specified path

public void GetAllFilesAndDertorys(string _path)
    {
        //判断路径是否存在
        if (Directory.Exists(_path))
        {
            DirectoryInfo dir = new DirectoryInfo(_path);
            //获取目标路径下的所有文件与文件夹
            FileSystemInfo[] allFilesAndDir = dir.GetFileSystemInfos("*",SearchOption.AllDirectories);
            //获取目标路径下的所有文件
            FileInfo[] allFiles = dir.GetFiles("*", SearchOption.AllDirectories);
            //获取目标路径下的单层文件
            FileInfo[] files = dir.GetFiles("*");
            //获取目标路径下的所有文件夹
            DirectoryInfo[] allDirs = dir.GetDirectories("*", SearchOption.AllDirectories);
            //获取目标路径下的单层文件夹
            DirectoryInfo[] dirs = dir.GetDirectories("*");

            foreach(var item in files)
            {
                //忽略.meta
                if (item.Name.EndsWith(".meta")) continue;
                //返回文件绝对路径 等于item.FullName
                Debug.Log(item);
                //返回文件带后缀名称
                Debug.Log(item.Name);
                //返回相对路径
                string assetsName = item.FullName;
                assetsName = assetsName.Substring(assetsName.IndexOf("Assets"));
                Debug.Log(assetsName);
            }
        }
    }