C# 正则表达式如何获取最后一个元素'；两个句子之间的时间是多少

e、 g
我想得到下面的句子最后一次同意像图片

输入：

Agree|AAA Agree 7/28 22:34,Agree|BBBB Agree 7/28 23:20,Agree|CCC Agree 7/29 07:41,Agree|JJJ Agree 7/29 07:45,Agree|DDD Agree 7/29 07:54,forward|EEE forward 7/29 07:54,forward|FFF forward 7/29 07:54,forward|GGG forward 7/29 07:54,forward|HHHH forward 7/29 07:54

预期产出：

7/29 07:54

我尝试过使用LINQ，但我只能像图片一样使用它

void Main()
{
    var input = "Agree|AAA Agree 7/28 22:34,Agree|BBBB Agree 7/28 23:20,Agree|CCC Agree 7/29 07:41,Agree|JJJ Agree 7/29 07:45,Agree|DDD Agree 7/29 07:54,forward|EEE forward 7/29 07:54,forward|FFF forward 7/29 07:54,forward|GGG forward 7/29 07:54,forward|HHHH forward 7/29 07:54";
    var output = input.Split('|')
        .Where(_ => _.Contains("Agree")).Select((e, index) => new {e,index})
        .OrderByDescending(_=>_.index)
        .Take(1);
}

---

这个正则表达式会起作用

Agree (\d{1,2}\/\d{1,2} \d{1,2}:\d{1,2})(?!.*Agree \d{1,2}\/\d{1,2} \d{1,2}:\d{1,2})

这意味着

Agree\d{1,2}\/\d{1,2}\d{1,2}:\d{1,2}

之后不出现任何

Agree\d{1,2}\/\d{1,2}\d{1,2}:\d{1,2}

然后将

7/29 07:54

提取到

lastAgree

变量中

string pattern = @"Agree (\d{1,2}\/\d{1,2} \d{1,2}:\d{1,2})(?!.*Agree \d{1,2}\/\d{1,2} \d{1,2}:\d{1,2})";           

// Get your match using pattern
var match = Regex.Match(text, pattern);

// Groups[1] is (\d{1,2}\/\d{1,2} \d{1,2}:\d{1,2})
var lastAgree = match.Groups[1].Value;