C# DriveInfo 读取驱动器出现的错误提示排除方法，原来超幼稚！

测试代码：

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace DriveInfoHelper
{
    class Program
    {
        static void Main(string[] args)
        {
            DriveInfo[] drives = DriveInfo.GetDrives();
            Console.WriteLine("驱动器名/t类型/t格式/t总共空间/t可用空间");
            foreach(DriveInfo di in drives)
            {
                Console.WriteLine(string.Format("{0}/t/t{1}/t{2}/t{3}/t{4}",di.Name,di.Driv