读取和解析文件中.NET - 性能对于租用 [英] Reading and Parsing Files in .NET - Performance For Hire

问题描述

我最想要的performat的方式来阅读和分析的文件。

I want the most performat way to read and parse a file.

是否有可能读取.NET中的文件，而不是整个文件加载到内存中？也就是，只有通过加载行的文件行我分析的每一行的内容？

Is it possible to read a file in .NET, but not load the entire file into memory? i.e. just load the file line by line as I parse the content of each row?

请问XmlTextReader将整个文件加载到内存中，或它流的文件到内存中读取文件？

Does XmlTextReader load the entire file into memory or does it stream the file into memory as it reads the file?

推荐答案

您可以使用StreamReader类的ReadLine方法：

You could use the ReadLine method of StreamReader Class:

string line;

// Read the file and display it line by line.
System.IO.StreamReader file = 
   new System.IO.StreamReader("c:\\test.txt");

while((line = file.ReadLine()) != null)
{
   Console.WriteLine (line);
}

file.Close();

有关XML文件，我会去XMLTextReader的。查看博士道博的日记这文章：

For XML files I would go with XMLTextReader. See this article on Dr. Dobb's Journal:

使用C＃解析XML文件中。NET：五个不同的解析技术是在.NET中可用，每个人都有自己的优势的

"Parsing XML Files in .NET Using C#: Five different parsing techniques are available in .NET, and each has its own advantages"

这篇关于读取和解析文件中.NET - 性能对于租用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！