从列表C#中删除方括号

List<string> list = new List<string>() { "item1", "item2", "[item3]", "[item4]" };
string listAsString = string.Join(", ", list);
listAsString = listAsString.Replace("[", "").Replace("]", "");
List<string> updatedList = listAsString.Split(", ").ToList();

List<string> list = new List<string>() { "item1", "item2", "[item3]", "[item4]" };
List<string> updatedList = list.Where(item => !item.Contains("[") && !item.Contains("]")).ToList();