修改文本文件中特定行的内容 [英] Modify the content of specific line in text file

问题描述

我是C#的新手，目前正在研究项目，因此我需要打开一个现有的文本文件并编辑特定行(即32)的内容，但是我失败了！有帮助吗?

I'm new on c# and currently working on project so that I need to open an existing text file and editing the content of a specific line (i.e. 32) but I failed! Any help?

推荐答案

根据您的问题，您知道行号，因此可以执行以下操作:

Well, based on your question you know the line number, so do something like this:

var lines = File.ReadAllLines("path to file");
lines[31] = "some value";
File.WriteAllLines("path to file", lines);

第一行代码将文件的所有行放入数组中.第二行清楚地将您的已知行设置为某个值，第三行用新的行集覆盖文件.

the first line of code gets you all the lines of a file into an array. The second line clearly sets thy known line to some value, and the third line overwrites the file with the new set of lines.

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