正则表达式替换文本文件中的未知值-C#和ASP.NET [英] Regular Expression to replace unknown value in text file - c# and asp.net

问题描述

我想使用asp.net中的c#函数替换文本文件中的一行.该行是:

I'd like to replace a line in a text file using a c# function in asp.net. The line is:

SQL-SERVER-VERSION =某个未知值"

SQL-SERVER-VERSION="some unknown value"

我不知道=之后的值可能是多少，所以我需要为此使用通配符.我希望新行显示为:

I don't know what the value after = might be so I need to use a wildcard for this. I want the new line to read:

SQL-SERVER-VERSION ="2008"

SQL-SERVER-VERSION="2008"

我正在尝试使用Regex.Replace，但是无论我尝试使用什么正则表达式，它都行不通.有人可以帮忙吗?谢谢，约翰

I'm trying to use Regex.Replace but no matter what regular expression I try, it doesn't work. Can anybody help? Thanks, John

推荐答案

我不知道您已经尝试过什么，所以无法告诉您您做错了什么，但是以下方法应该可以工作:

I don't know what you already tried so I can't tell you what you were doing wrong, but the following should work:

string s = "SQL-SERVER-VERSION=\"some unknown value\"";
s = Regex.Replace(s, "SQL\\-SERVER\\-VERSION=\".*\"", "SQL-SERVER-VERSION=\"2008\"");

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