C# 反对已处理异常 - 我该如何纠正它们

发布的代码写得不是很好。

无论如何，您可以尝试以下快速更改：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace WaveTestRead
{
    public class Program
    {
        public static void Main(string[] args)
        {
            using (var waveReader = new WaveReader())
            {
                if (!waveReader.Open("wavetest.wav"))
                {
                    Console.WriteLine("Failed to read file.");
                    return;
                }
                if (!waveReader.ReadFmt())
                {
                    Console.WriteLine("Failed to read fmt.");
                    return;
                }
                // this method is not defined...
                //waveReader.ReadData();
            }
        }
    }
    class WaveReader : IDisposable
    {
        FileInfo m_fInfo;
        FileStream m_fStream;
        BinaryReader m_binReader;
        // RIFF chunk
        byte[] chunkID;
        UInt32 chunkSize;
        byte[] format;
        // fmt subchunk
        byte[] fmtChunkID;
        UInt32 fmtChunkSize;
        UInt16 audioFormat;
        UInt16 numChannels;
        UInt32 sampleRate;
        UInt32 byteRate;
        UInt16 blockAssign;
        UInt16 BitsPerSample;
        // data subchunk
        byte[] dataChunkID;
        UInt32 dataChunkSize;
        byte[] data8L;              // 8-bit left channel
        byte[] data8R;              // 8-bit right channel
        Int16[] data16L;           // 16-bit left channel
        Int16[] data16R;           // 16-bit right channel
        int numSamples;
        public WaveReader()
        {
        }
        public bool Open(String filename)
        {
            string str;
            m_fInfo = new FileInfo(filename);
            m_fStream = m_fInfo.OpenRead();
            m_binReader = new BinaryReader(m_fStream);
            chunkID = new byte[4];
            format = new byte[4];
            chunkID = m_binReader.ReadBytes(4);
            chunkSize = m_binReader.ReadUInt32();
            format = m_binReader.ReadBytes(4);
            str = System.Text.ASCIIEncoding.ASCII.GetString(chunkID, 0, 4);
            if (str != "RIFF")
                return false;
            str = System.Text.ASCIIEncoding.ASCII.GetString(format, 0, 4);
            if (str != "WAVE")
                return false;
            //if (ReadFmt() == false)
            //    return false;
            //if (ReadData() == false)
            //    return false;
            return true;
        }
        public bool ReadFmt()
        {
            fmtChunkID = new byte[4];
            fmtChunkID = m_binReader.ReadBytes(4);
            string str = System.Text.ASCIIEncoding.ASCII.GetString(fmtChunkID, 0, 4);
            if (str != "fmt ")
                return false;
            fmtChunkSize = m_binReader.ReadUInt32();
            audioFormat = m_binReader.ReadUInt16();
            numChannels = m_binReader.ReadUInt16();
            sampleRate = m_binReader.ReadUInt32();
            byteRate = m_binReader.ReadUInt32();
            blockAssign = m_binReader.ReadUInt16();
            BitsPerSample = m_binReader.ReadUInt16();
            return true;
        }
        public void Dispose()
        {
            if (m_fStream != null)
                m_fStream.Dispose();
        }
    }
}

基本上，我已经用你的代码创建了一个类WaveReader，并删除了对ReadFmt的内部调用。然后在 Main 方法中，我检查了返回代码，如果为 false，我会写入控制台。

问题可能存在于Main 中。 Open 方法在最后关闭文件，Main 中的ReadFmt调用从 m_binReader 读取。 要么在Open调用后不要从 main 方法调用 ReadFmt，要么将Open更改为在完成后不关闭文件（并使关闭显式

看起来Open无论如何都在为您完成所有工作（通过致电ReadFmt和ReadData）。 您无需在Main中再次执行此操作;只需从p访问数据即可。