这里有个问题 谢谢谁来帮我
string commandText = "select count(*) from student1";
SqlConnection conn=new SqlConnection();
conn.C;
//string c;
// SqlConnection conn = new SqlConnection();
SqlCommand cmd = new SqlCommand(commandText, conn);
conn.Open();
string count = cmd.ExecuteScalar().ToString();
conn.Close();
this.lblResult.Text = "共有" + count + "位学生";
count 是什么意思?