使用FileStream和这些选项c#读取文本文件的实际内容 [英] Read the actual contents of text file using FileStream and these options c#

问题描述

我需要使用FileStream并使用下面提到的选项在C#中打开一个文本文件

I need to open a text file within C# using FileStream and with the options mentioned below

var fileStream = new FileStream(filePath, 
                                FileMode.Open, 
                                FileAccess.Read, 
                                FileShare.Read, 64 * 1024,
                               (FileOptions)FILE_FLAG_NO_BUFFERING | 
                                  FileOptions.WriteThrough & FileOptions.SequentialScan);

文本文件包含"1"或"0"，获得结果后，我将文本文件的内容分配给字符串变量.如果您有兴趣，我需要上面的选项，以避免Windows从缓存中读取文本文件.

The text file contains a "1" or "0" and after obtaining the results I am going to assign the contents of the text file to a string variable. In case you're interested, I need the above options in order to avoid Windows reading the text files from cache.

System.IO.File.ReadAllText()

...还不够好.

有人会好心地写一个简单的sub来满足我的这些要求，因为到目前为止我看到的示例涉及使用字节和缓冲区(此时我确实需要处理的一个区域)，然后离开就是那个.

Would somebody be kind enough to write a simple sub which incorporates these requirements for me please as the examples I've seen so far involve working with bytes and buffers (an area I really need to work on at this time) and leaves it at that.

谢谢

推荐答案

也许是这样的:

    FileStream fileStream = new FileStream("[path]", FileMode.Open, FileAccess.Read, FileShare.Read, 64 * 1024,
        (FileOptions)0x20000000 | FileOptions.WriteThrough & FileOptions.SequentialScan);

    string fileContents;
    using (StreamReader reader = new StreamReader(fileStream))
    {
        fileContents = reader.ReadToEnd();
    }


    bool assignedvariable = Convert.ToBoolean(fileContents);

如果文件包含1，则assignedvariable将为true，如果文件为0，则为false.

assignedvariable will hold true if the file contains 1 and false if it contains 0.

很抱歉，如果已经回答了这个问题，人们会在这里发布得很快.

Sorry if this has been answered already people post very fast here.

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