下面是我已经使用了一段时间的日志文件中的一行示例：
5/21/2015 11:55:56 PM | Batch 6|386/767|50.33 %|CH2M-R|Processed NXRMN5...Checking refundable and non-refundable fares. Traditional Booking. Inside ticketing window. Minimum Savings Required: $131.00. Actual Savings: $257.18. Savings found: $257.18 (11.55 %). Savings were previously found.
在此文件中，我需要捕获以下类别：第一个是日期和时间，第二个是Locator，它是NXRMN5，发现的节省以及此行中的百分比（如果有），为$ 257.18 11.5％。
在控制台中，我希望它看起来像这样：
Date: 5/21/2015 11:55:56 PM
Locator: NXRMN5
Dollar Savings: $257.18
Percent Savings: 11.55 %
下面有一些我已经工作了很长时间的代码：
foreach (string line in gdsLines)
{
Match m = Regex.Match(line, @"Savings\s+found:\s*\$(?<savings>\d+\.\d+)\s*\(\s*(?<percent>\d+\.\d+)\s*%");
if (m.Success)
{
decimal gdsNumberSavings = decimal.Parse(m.Groups["savings"].Value, CultureInfo.InvariantCulture);
decimal gdsNumberPercent = decimal.Parse(m.Groups["percent"].Value, CultureInfo.InvariantCulture);
Console.WriteLine("Dollar Savings: $" + gdsNumberSavings + " Percent Savings: " + gdsNumberPercent + " % " + "\n");
gdsTotalSavings += gdsNumberSavings;
gdsTotalPercentage += gdsNumberPercent;
}
}
我提供的这段代码使用我制作的正则表达式，然后将找到的节省量和百分比都放入，然后在控制台中打印值。不必担心gdsTotal其他变量。主要关注的是正则表达式。为了添加我需要的其他元素，我是否需要创建另一个正则表达式，还是可以对其进行添加？不管哪种方式，有人可以帮助我形成此正则表达式吗？任何帮助将不胜感激！
让我提出以下解决方案：
|并获取第一个元素来提取日期代码如下：
string line = "5/21/2015 11:55:56 PM | Batch 6|386/767|50.33 %|CH2M-R|Processed NXRMN5...Checking refundable and non-refundable fares. Traditional Booking. Inside ticketing window. Minimum Savings Required: $131.00. Actual Savings: $257.18. Savings found: $257.18 (11.55 %). Savings were previously found.";
string date = line.Split('|').Take(1).FirstOrDefault().Trim();
Match m = Regex.Match(line, @"Processed\s+(?<locator>[^.]+)\.{3}.*?Savings\s+found:\s*\$(?<savings>\d+\.\d+)\s*\(\s*(?<percent>\d+\.\d+)\s*%");
if (m.Success)
{
decimal gdsNumberSavings = decimal.Parse(m.Groups["savings"].Value, CultureInfo.InvariantCulture);
decimal gdsNumberPercent = decimal.Parse(m.Groups["percent"].Value, CultureInfo.InvariantCulture);
string locator = m.Groups["locator"].Value;
Console.WriteLine("Date: " + date + ", Locator: " + locator + "Dollar Savings: $" + gdsNumberSavings + " Percent Savings: " + gdsNumberPercent + " % " + "\n");
gdsTotalSavings += gdsNumberSavings;
gdsTotalPercentage += gdsNumberPercent;
}
输出：
Date: 5/21/2015 11:55:56 PM, Locator: NXRMN5Dollar Savings: $257,18 Percent Savings: 11,55 %
或者，您可以在单个正则表达式中使用相同的逻辑：
Match m = Regex.Match(line, @"^(?<date>[^|]+)\|.*Processed\s+(?<locator>[^.]+)\.{3}.*?Savings\s+found:\s*\$(?<savings>\d+\.\d+)\s*\(\s*(?<percent>\d+\.\d+)\s*%");
在if块内：
string date = m.Groups["date"].Value.Trim();
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