GarbledCheck

中文乱码遍历转换尝试

通过遍历本机编码，对中文乱码进行尝试性的转换 使用者可以通过观察转换的结果，找到正确的原始编码

另外，网上流转的直接判断BOM的代码：
///

/// Determines a text file's encoding by analyzing its byte order mark (BOM).
/// Defaults to ASCII when detection of the text file's endianness fails.
///

/// The text file to analyze.
/// The detected encoding.
public static Encoding GetEncoding(string filename)
{
// Read the BOM
var bom = new byte[4];
using (var file = new FileStream(filename, FileMode.Open, FileAccess.Read))
{
file.Read(bom, 0, 4);
}

// Analyze the BOM  
if (bom[0] == 0x2b && bom[1] == 0x2f && bom[2] == 0x76) return Encoding.UTF7;  
if (bom[0] == 0xef && bom[1] == 0xbb && bom[2] == 0xbf) return Encoding.UTF8;  
if (bom[0] == 0xff && bom[1] == 0xfe) return Encoding.Unicode; //UTF-16LE  
if (bom[0] == 0xfe && bom[1] == 0xff) return Encoding.BigEndianUnicode; //UTF-16BE  
if (bom[0] == 0 && bom[1] == 0 && bom[2] == 0xfe && bom[3] == 0xff) return Encoding.UTF32;  
return Encoding.ASCII;  

}

相关的讨论：
https://stackoverflow.com/questions/4942825/xdocument-saving-xml-to-file-without-bom https://www.codeproject.com/Articles/5302027/Removing-a-BOMB-from-Your-Text