//显示图片
private void Lv1_Click(object sender, EventArgs e)
{
int id = Convert.ToInt32(Lv1.SelectedItems[0].Text);
RepastBLL.wordsManager w = new RepastBLL.wordsManager();
RepastModel.Coursedetails ccc = w.picbyid(id);
string pic1 = ccc.Cd_right_pic.ToString();
string pic2 = ccc.Cd_wrong_pic1.ToString();
string pic3 = ccc.Cd_wrong_pic2.ToString();
string pic4 = ccc.Cd_wrong_pic3.ToString();
pictureBox1.Image = Image.FromFile(pic1);
pictureBox2.Image = Image.FromFile(pic2);
pictureBox3.Image = Image.FromFile(pic3);
pictureBox4.Image = Image.FromFile(pic4);
}
