文件字符串操作 [英] File String manipulation

问题描述

我具有此功能，可以很好地查找和替换myText.txt中的字符串

FileReplaceString("c:\ myText.txt"，"oldWord"，"newWord"，false);

公共无效FileReplaceString(字符串路径，字符串查找，字符串替换，布尔型匹配项)
{

TextReader r =新的StreamReader(path);
字符串文本= r.ReadToEnd();
r.Close();
文本= Regex.Replace(文本，Regex.Escape(查找)，替换，(匹配情况)?RegexOptions.None:RegexOptions.IgnoreCase);
TextWriter w =新的StreamWriter(path);
//MessageBox.Show(find);
w.Write(text);
w.Flush();
w.Close();
}
我不想将"oldword"替换为"newWord".我需要做的是找到字符串"oldword"，然后读取下一个5个字符(例如，字符串可能看起来像
xsasdsdadad oldWord12345)，因此读取12345
非常感谢您的帮助.

I have this function that works great finding and replacing a string in a myText.txt

FileReplaceString("c:\myText.txt", "oldWord", "newWord", false);

public void FileReplaceString(string path, string find, string replace, bool matchcase)
{

TextReader r = new StreamReader(path);
string text = r.ReadToEnd();
r.Close();
text = Regex.Replace(text, Regex.Escape(find), replace, (matchcase) ? RegexOptions.None : RegexOptions.IgnoreCase);
TextWriter w = new StreamWriter(path);
//MessageBox.Show(find);
w.Write(text);
w.Flush();
w.Close();
}
I do not want to replace "oldword" by "newWord". What I need to do is to find the string "oldword" and then read the next 5 character (i.g. the string may look like
xsasdsdadad oldWord12345) and thus reading 12345
Any help is greatly appreciated.

推荐答案

text.Substring(text.IndexOf("text") + 4, 5);

这有帮助吗?

does that help any?

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