private Int32 _LastHoverIndex = -1;

        private void listView1_ItemMouseHover(object sender, ListViewItemMouseHoverEventArgs e)
        {
            if (_LastHoverIndex != -1)
            {
                listView1.Items[_LastHoverIndex].ForeColor = System.Drawing.SystemColors.WindowText;
            }

            e.Item.ForeColor = System.Drawing.Color.Red;
            _LastHoverIndex = e.Item.Index;
        }

------解决方案--------------------
if (_LastHoverIndex != -1 && e.Item.Index != _LastHoverIndex)
少了个条件





------解决方案--------------------
这么好的方法还叫拆中啊