c#中的reg表达式——当我组合所有条件时很困难

我已经编写了上面的方法来获取匹配的模式字符串。我能单独理解所有模式匹配字符。但是当我把所有的条件放在一起的时候，我失败了。删除了我的测试模式数据，因为当我把所有条件放在一起时，我没有得到结果

以下是我正在寻找的模式

[stringData1-OnlyNumericData1-OnlyNumericData2]

。

stringData1

的最大大小限制为10。

stringData1

、

OnlyNumericData1

和

OnlyNumericData2

中至少应有一个字符

案例

这是测试主题行

[testData1-12345-678]

和

test-1213-778]

。仅返回

[testData1-12345-678]

，并且第二次出现时缺少

[

这是测试主题行

[testData1-test12345-678Test]

和

test-1213-778]

。由于

OnlyNumericData1

和

OnlyNumericData2

不是数字，因此不返回任何内容

---

对您的整个问题执行的这个正则表达式测试只提供了2个匹配项：

    public static string GetData(string subjectLine)
    {
        // Define the regular expression pattern. 

        string pattern = "";
        string returnString = "Error";

        Regex rgx = new Regex(pattern);

        // Find matches.
        MatchCollection matches = rgx.Matches(subjectLine);

        if (matches.Count >= 1)
        {
            return matches[0].Value;
        }
        return returnString;

    }

---

顺便说一句：这是一个在线dotnet regex测试的好网站

我很幸运有这个网站：

        string strRegex = @"\[\w{1,10}-[\d]+?-[\d]+\]";
        Regex myRegex = new Regex(strRegex, RegexOptions.None);
        string strTargetString = @"I have written the above method to get the matching pattern string. I understand individually all the pattern matching characters. But I am failing when I put all my conditions together. Removed my test pattern data since I am not getting the result when I put all my conditions together." + "\n\n" + @"Here is the pattern I am looking for [stringData1-OnlyNumericData1-OnlyNumericData2]. The max size limit for stringData1 is 10. At least one characters should be there in stringData1, OnlyNumericData1 and OnlyNumericData2." + "\n\n" + @"Cases" + "\n\n" + @"Here is the test subject line [testData1-12345-678] and test-1213-778]. Returns only [testData1-12345-678] and [ is missing in second occurrence." + "\n\n" + @"Here is the test subject line [testData1-test12345-678Test] and test-1213-778]. Returns nothing because OnlyNumericData1 & OnlyNumericData2 are not numeric.";

        foreach (Match myMatch in myRegex.Matches(strTargetString))
        {
            if (myMatch.Success)
            {
                // Add your code here
            }
        }

public static string GetData(string subjectLine)
{
    //im not sure if you want to include numeric in the stringData1 part
    //replace [A-z\d] with [A-z] to accept only letters for stringData1
    var result = Regex.Match(subjectLine, @"\[[A-z\d]{1,10}-\d+-\d+\]");
    return result.Success ? result.Value : "Error";
}

---

如果“stringData1”包含破折号或右括号，该怎么办？“stringData1”不应包含破折号、右括号或左括号。如果包含此类数据，则视为坏数据，不应进行模式匹配。Mmmhm。那么，您用来过滤每个部分的模式是什么？

\A[\][\s\w-]{1,10}-[0-9]+-[0-9]+[\]]