private void btnDelete_Click(object sender, EventArgs e)
{
if (listView.SelectedItems.Count == 0)
{
return;
}
if (MessageBox.Show("您确定要删除列表上所选择的日志吗？（删除后不可恢复）", "提示", MessageBoxButtons.OKCancel,
MessageBoxIcon.Information) != DialogResult.OK)
{
return;
}
LogTable.DeleteSelectedLog(listView);
btnSearch_Click(sender, e);
}