//exec Delete_kc 6
int KeChengHao = int.Parse(this.textBox1.Text.Trim());
System.Data.SqlClient.SqlConnection con = new System.Data.SqlClient.SqlConnection("Data Source=127.0.0.1;Initial Catalog=Student;User ID=sa;PassWord=58");
System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand("Delete_kc", con);
cmd.CommandType = CommandType.StoredProcedure;
System.Data.SqlClient.SqlParameter p = new System.Data.SqlClient.SqlParameter("@课程号", SqlDbType.Int, 4);
p.Value = KeChengHao;
cmd.Parameters.Add(p);
con.Open();
int changeline = cmd.ExecuteNonQuery();
con.Close();
label2.Text = "数据库更改行数" + changeline.ToString();