private void btnWrite_Click(object sender, EventArgs e)
{
SaveFileDialog sfd = new SaveFileDialog();
sfd.Filter = "Excel文件（*.xlsx)|*.xlsx";
sfd.Title = "Excel文件操作";
if (sfd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
//文件名
//sfd.FileName
bll.ExcelWrite(sfd.FileName);
msgs.MsgDivShow("成功了", 1);
}
}