扩展ASCII在C＃ [英] Extended ASCII in C#

问题描述

我想将一些扩展ascii字符存储到字典中查找，但对于获取转换没有什么问题。

当前方法我必须存储这些

当前方法：

  private static void LoadAnsiTable（）
 {
 for（byte i = 0x20; i< 0xFE; i ++）
 {
 AnsiLookup.Add ，Convert.ToChar（i）.ToString（））; 
} 
} 
  

但是0xAF和on没有░▒

查看此表 http://www.asciitable.com/ 以供参考。

如果我手动添加，

  AnsiLookup.Add（0xB0，░）; 
  

我想知道如何获得这些符号在某些集合中捕获，

我假设你的扩展ASCII实际上是代码页437 ：

 编码cp437 = GetEncoding（437）; 
 byte [] source = new byte [1]; 
 for（byte i = 0x20; i <0xFE; i ++）
 {
 source [0] = i; 
 AnsiLookup.Add（i，cp437.GetString（source））; 
} 
  

请注意，此代码页本身不受.NET Framework支持，因此它可能不是在所有系统上都可用。

I want to store some of the extended ascii characters into a dictionary for lookup but having little issue with getting the conversion.

The current method I have to store these characters works for all the non-graphical looking ascii characters 0x20 to 0xAF.

Current method:

private static void LoadAnsiTable()
{
    for (byte i = 0x20; i < 0xFE; i++)
    {
      AnsiLookup.Add(i, Convert.ToChar(i).ToString());
    }
}

but the 0xAF and on does not have the ░ ▒ ▓ │ ┤╡ ╢ etc it just has these funky letters.

Looking at this table http://www.asciitable.com/ for reference.

This works if I manually add it,

AnsiLookup.Add(0xB0, "░");

I would like to know how I can get those symbols captured in some kind of collection without having to manually add them all?

解决方案

I assume your "Extended ASCII" is actually code page 437:

Encoding cp437 = Encoding.GetEncoding(437);
byte[] source = new byte[1];
for (byte i = 0x20; i < 0xFE; i++)
{
    source[0] = i;
    AnsiLookup.Add(i, cp437.GetString(source));
}

Beware that this code page is not natively supported by the .NET Framework, so it might not be available on all systems.

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