C#：如何使用不断变化的前缀拆分字符串

string str = "prefix1:content1,prefix2:content2,prefix3:content3";
string[] prefixes = { "prefix1:", "prefix2:", "prefix3:" };
string[] parts = str.Split(',');

foreach (string part in parts)
{
    foreach (string prefix in prefixes)
    {
        if (part.StartsWith(prefix))
        {
            string content = part.Substring(prefix.Length);
            Console.WriteLine("Prefix: " + prefix);
            Console.WriteLine("Content: " + content);
            break;
        }
    }
}