C#获取真实文件类型

最新推荐文章于 2024-05-15 00:30:00 发布

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最新推荐文章于 2024-05-15 00:30:00 发布 · 3.2k 阅读

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CC 4.0 BY-SA版权

本文介绍如何使用C#来确定文件的真实MIME类型，通过检查文件头来识别不同类型的文件，包括图片、文档、音频和视频等。

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public class FileHelper
{
    public enum FileExtension
    {
        JPG = 255216,
        GIF = 7173,
        BMP = 6677,
        PNG = 13780,
        COM = 7790,
        EXE = 7790,
        DLL = 7790,
        RAR = 8297,
        ZIP = 8075,
        XML = 6063,
        HTML = 6033,
        ASPX = 239187,
        CS = 117115,
        JS = 119105,
        TXT = 210187,
        SQL = 255254,
        BAT = 64101,
        BTSEED = 10056,
        RDP = 255254,
        PSD = 5666,
        PDF = 3780,
        CHM = 7384,
        LOG = 70105,
        REG = 8269,
        HLP = 6395,
        DOC = 208207,
        XLS = 208207,
        DOCX = 208207,
        XLSX = 208207,
    }
    public static void CheckType()
    {
        string path = @"D:\我的文档\My Pictures\logo5.png";
        System.IO.FileStream fileStream = new System.IO.FileStream(path, System.IO.FileMode.Open, System.IO.FileAccess.Read);
        System.IO.BinaryReader binaryReader = new System.IO.B