该进程无法访问文件XXX，因为它正在被另一个进程使用

Question

When I run my application, I get this error on the first "using" here:

    public void CreateFile(string filePath)
    {

        //Create File
        string fileLoc = filePath;

        FileStream fs = null;
        if (!File.Exists(fileLoc))
        {
            using (fs = File.Create(fileLoc))
            {

            }
        }

    }

    public void WriteFile(string filePath)
    {
        //Write to File
        string fileLoc = filePath;

        if (File.Exists(fileLoc))
        {
            using (StreamWriter sw = new StreamWriter(fileLoc))
            {
                sw.Write("Some sample text for the file");
            }
        }
    }

A file from that directory was previously opened and read from, but the StreamReader was closed after it was read. I'm not sure if that has any significance with this error. Thanks.

Answer 1

您对出现错误的行之前的File.Exists检查表明发生了奇怪的事情，例如尝试将目录路径用作filePath或多线程竞争条件。