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zhao

2021-07-19 8347f2fbddbd25369359dcb2da1233ac48a19fdc

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
 
namespace HH.WMS.Utils
{
    public partial class ZFiles
    {
        public static string GetContentType(string fileName)
        {
            string contentType = "application/octetstream";
            string ext = System.IO.Path.GetExtension(fileName).ToLower();
            Microsoft.Win32.RegistryKey registryKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext);
            if (registryKey != null && registryKey.GetValue("Content Type") != null)
                contentType = registryKey.GetValue("Content Type").ToString();
            return contentType;
        }
    }
}