最近写了一个下载器(多线程下载)，想实现打开文件所在位置。网上找了一些资源可以实现定位到文件夹，但不能定位文件。

网络上的资料--实现定位到文件夹

	System.Diagnostics.Process.Start("/Users/zf");

网络上的资料--Windows实现方式

  // 打开文件
  System.Diagnostics.Process.Start("Explorer.exe","c:\\windows\text.txt");

  // 定位到文件
	System.Diagnostics.Process.Start("Explorer.exe","/select, \"c:\\windows\text.txt\"");

Mac实现方式

看Windows可以用Explorer来实现，我想Mac的Finder应该有对应的方式。于是找呀找 没发现有Finder的执行文件。后来就想open命令，找到了open命令所在位置"/usr/bin/open"。之前一直用open xxx，目录还好，文件可是会直接打开文件的。于是网上找open命令的参数，找了半天没找到。是我傻X了，用 open --help不就行。于是就找到了 open -R xxxx

open --help

open: unrecognized option `--help'
Usage: open [-e] [-t] [-f] [-W] [-R] [-n] [-g] [-h] [-b <bundle identifier>] [-a <application>] [filenames] [--args arguments]
Help: Open opens files from a shell.
      By default, opens each file using the default application for that file.  
      If the file is in the form of a URL, the file will be opened as a URL.
Options: 
      -a                Opens with the specified application.
      -b                Opens with the specified application bundle identifier.
      -e                Opens with TextEdit.
      -t                Opens with default text editor.
      -f                Reads input from standard input and opens with TextEdit.
      -F  --fresh       Launches the app fresh, that is, without restoring windows. Saved persistent state is lost, excluding Untitled documents.
      -R, --reveal      Selects in the Finder instead of opening.
      -W, --wait-apps   Blocks until the used applications are closed (even if they were already running).
          --args        All remaining arguments are passed in argv to the application's main() function instead of opened.
      -n, --new         Open a new instance of the application even if one is already running.
      -j, --hide        Launches the app hidden.
      -g, --background  Does not bring the application to the foreground.
      -h, --header      Searches header file locations for headers matching the given filenames, and opens them.

open -R 命令测试

 open -R /Users/macserver/Downloads/unity_guidref_3.png

C# open

System.Diagnostics.Process.Start( "/usr/bin/open", "-R /Users/macserver/Downloads/unity_guidref_3.png");

最终

        public void RevealInFinder(string path)
        {
            #if UNITY_STANDALONE_OSX
            System.Diagnostics.Process.Start( "/usr/bin/open", "-R " + path);

            #elif UNITY_STANDALONE_WIN
            path = path.Replace("/", "\\");
            System.Diagnostics.Process.Start("Explorer.exe", "/select, \"" +path+ "\"");
            #endif
        }