C# 使用正则表达式从字符串中提取多个值
我有一个输入字符串,其生成如以下示例所示:C# 使用正则表达式从字符串中提取多个值,c#,.net,regex,C#,.net,Regex,我有一个输入字符串,其生成如以下示例所示: string.Format("Document {0}, was saved by {1} on {2}. The process was completed {3} milliseconds and data was received.", "Document.docx", "John", "1/1/2011", 45); 它生成的字符串如下所示: Document Document.docx, was saved by John on 1/1
string.Format("Document {0}, was saved by {1} on {2}. The process was completed
{3} milliseconds and data was received.",
"Document.docx", "John", "1/1/2011", 45);
它生成的字符串如下所示:
Document Document.docx, was saved by John on 1/1/2011. The process was completed
45 milliseconds and data was received.
一旦从不同的应用程序接收到这样的字符串,用正则表达式解析并从中提取值Document.docx
,John
,1/1/2011
,45
的最简单方法是什么
我正在寻找最简单的方法,因为我们必须解析许多不同的输入字符串 您可以使用以下内容:
private static readonly Regex pattern =
new Regex("^Document (?<document>.*?), was saved by (?<user>.*?) on " +
"(?<date>.*?)\\. The process was completed (?<duration>.*?) " +
"milliseconds and data was received\\.$");
public static bool MatchPattern(
string input,
out string document,
out string user,
out string date,
out string duration)
{
document = user = date = duration = null;
var m = pattern.Match(input);
if (!m.Success)
return false;
document = m.Groups["document"].Value;
user = m.Groups["user"].Value;
date = m.Groups["date"].Value;
duration = m.Groups["duration"].Value;
return true;
}
var input = "...";
string document, user, date, duration;
if (MatchPattern(input, out document, out user, out date, out duration)) {
// Match was successful.
}
太棒了,你救了我的一天:-)试图找到python等价物:/