UTF-16 到 UTF-8 的转换（用于 Windows 中的脚本）
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UTF-16 to UTF-8 conversion (for scripting in Windows)
提问by Grzenio
what is the best way to convert a UTF-16 files to UTF-8? I need to use this in a cmd script.
将 UTF-16 文件转换为 UTF-8 的最佳方法是什么？我需要在 cmd 脚本中使用它。
回答by Kaarel
回答by Jon Skeet
An alternative to Ruby would be to write a small .NET program in C# (.NET 1.0 would be fine, although 2.0 would be simpler :) - it's a pretty trivial bit of code. Were you hoping to do it without any other applications at all? If you want a bit of code to do it, add a comment and I'll fill in the answer...
Ruby 的替代方法是用 C# 编写一个小的 .NET 程序（.NET 1.0 会很好，虽然 2.0 会更简单:) - 这是一段非常简单的代码。您是否希望在没有任何其他应用程序的情况下做到这一点？如果你想要一些代码来做到这一点，请添加评论，我会填写答案......
EDIT: Okay, this is without any kind of error checking, but...
编辑：好的，这没有任何错误检查，但是......
using System;
using System.IO;
using System.Text;
class FileConverter
{
static void Main(string[] args)
{
string inputFile = args[0];
string outputFile = args[1];
using (StreamReader reader = new StreamReader(inputFile, Encoding.Unicode))
{
using (StreamWriter writer = new StreamWriter(outputFile, false, Encoding.UTF8))
{
CopyContents(reader, writer);
}
}
}
static void CopyContents(TextReader input, TextWriter output)
{
char[] buffer = new char[8192];
int len;
while ((len = input.Read(buffer, 0, buffer.Length)) != 0)
{
output.Write(buffer, 0, len);
}
}
}
回答by Tor Haugen
Certainly, the easiestway is to load the script into notepad, then save it again with the UTF-8 encoding. It's an option in the Save As dialog box..
当然，最简单的方法是将脚本加载到记事本中，然后使用 UTF-8 编码再次保存。这是另存为对话框中的一个选项。
回答by VonC
If you have a ruby distribution installed, you can call a ruby script taking care of the conversion:
如果您安装了 ruby 发行版，您可以调用一个 ruby 脚本来处理转换：
Ruby script to convert file(s) character encoding
In the same spirit: Perl script
本着同样的精神：Perl 脚本
In the absence of script support, you would have to code it like this C++ sourceusing a WideCharToMultiByte() call...
在没有脚本支持的情况下，您必须使用 WideCharToMultiByte() 调用像这个C++ 源代码一样对其进行编码...
回答by Ben Collins
You can do this easily with built-in PowerShell cmdlets, which you can invoke from cmd:
您可以使用内置的 PowerShell cmdlet 轻松完成此操作，您可以从 cmd 调用它：
C:\> powershell -c "Get-Content mytext.txt | Set-Content -Encoding utf8 mytext_utf8.txt"
