c# - 正则表达式不正确的输出

Question

大家好，我正在尝试在 C# 中创建一个正则表达式函数，它将在一个句子中搜索所有以“es”结尾的单词。我试图让输出的格式为

Word1 = bes
Word2 = mes
Word3 = ces

等等。问题是我在编译时不断收到“errorCS0136”。我尝试使用 Console.WriteLine() 并在循环的每次迭代中增加一个计数器变量，但这行不通。这是我收到的错误的副本。非常感谢。

Task1.cs(66,52): error CS1026: Unexpected symbol ',', expecting ')'

Task1.cs(66,55): error CS0136: A local variable named 'match' cannot be declared in this scope because it would give a different meaning to 'match', which is already used in a 'parent or current' scope to denote something else

Task1.cs(66,59): error CS1026: Unexpected symbol ')', expecting ')'

Compilation failed: 3 error(s), 0 warnings

下面是我的源代码。

public void numPatternSearch(){
    string input3;
    string pattern = @"\b\w+es\b";
    //Regex regex = new Regex("[*]");
    Console.WriteLine("Enter string to search: ");
    input3 = Console.ReadLine();
    //input3 = string.Join("", input3.Where(char.IsDigit).ToArray());
    //input3 = Regex.Match(input3, @"\d+").Value;
    //string[] substrings = regex.Split(input3);
    foreach (Match match in Regex.Matches(input3, pattern)){
        int count = 1;
        string[] substrings = "Number"+count+" = '{0}'", match;
        count++;
        Console.WriteLine(substrings);
        }
    //Console.WriteLine(input3);
    }
} 

Answer 1

您的编译器错误发生在该行:

string[] substrings = "Number"+count+" = '{0}'", match;

这不是有效的 c#。如果你想要结果字符串的列表，你可以试试这个:

List<string> substrings = new List<string>();
int count = 1;
foreach (Match match in Regex.Matches(input3, pattern))
{
    string substring = string.Format("Number{0} = '{1}'", count, match);
    count++;
    Console.WriteLine(substring);
    substrings.Add(substring);
 }

您现在可以使用 substrings进行进一步的操作。您可以转换 List<string>进入数组使用

string[] subStringArray = substrings.ToArray();

请注意，我声明了 count在循环之外。否则你会一直使用 1作为伯爵!