c# -如何使用Linq或其他方法从列表中删除匹配项

list = list.Where(item => item != matchItem).ToList();

list.RemoveAll(item => item == matchItem);

foreach (var item in list.ToList())
{
    if (item == matchItem)
    {
        list.Remove(item);
    }
}

for (int i = list.Count - 1; i >= 0; i--)
{
    if (list[i] == matchItem)
    {
        list.RemoveAt(i);
    }
}