Question

I am trying to read portuguese characters from files, and keep getting into problems.

我有以下C#代码(用于测试):

var streamReader = new StreamReader("file.txt");

while (streamReader.Peek() >= 0)
{
  var buffer = new char[1];
  streamReader.Read(buffer, 0, buffer.Length);
  Console.Write(buffer[0]);
}

It reads each character in the file and then outputs it to the console. The file contains the following: "cãsa". The output in the console is: "c?sa".

我做了什么错误?

Answer 1

你们需要用正确的编码阅读档案,否则,如果档案不是正确的编码,你就会发现这些问题。

举例来说,我使用的是超载的构件,在此情况下是UnicodeEncoding,即UTF-16:

using(var streamReader = new StreamReader("file.txt", Encoding.UnicodeEncoding))
{
    while (streamReader.Peek() >= 0)
    {
      var buffer = new char[1];
      streamReader.Read(buffer, 0, buffer.Length);
      Console.Write(buffer[0]);
    }
}

例如,我使用第860号法典,相当于葡萄牙文:

using(var streamReader = new StreamReader("file.txt", Encoding.GetEncoding(860)))
{
    while (streamReader.Peek() >= 0)
    {
      var buffer = new char[1];
      streamReader.Read(buffer, 0, buffer.Length);
      Console.Write(buffer[0]);
    }
}

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