在列表元素中添加引号

Question

如何在usersList中附加每个元素，并为每个用户添加引号，"User1","User2","User3"

class Program {
  
  public static List<string> usersList = new List<string>();
        
  static void Main(string[] args)
  {
  userList = ["User1,User2,User3"]
  }
}