1. 书写数据库语句

string str = ConfigurationManager.ConnectionStrings["Con"].ConnectionString;
            SqlConnection conn = new SqlConnection(str);

2. 打开数据库连接

  conn.Open();

3.书写SQL语句

string sql = "insert into info values(@name,@pwd,@person,@ID,@phone,@email)";

4.使用并书写参数化命令

 SqlCommand cmd = new SqlCommand(sql, conn);
            SqlParameter[] paras = new SqlParameter[]
            { new SqlParameter("@name",TextBox1.Text),
            new SqlParameter("@pwd",TextBox3.Text),
            new SqlParameter("@person",TextBox4.Text),
            new SqlParameter("@ID",TextBox5.Text),
            new SqlParameter("@phone",TextBox6.Text),
            new SqlParameter("@email",TextBox7.Text),
           };

5.Parameters.AddRange的AddRange可以一次将一个集合或数组添加到Parameters集合

 cmd.Parameters.AddRange(paras);

发送

if (cmd.ExecuteNonQuery() > 0)
       Write("成功");
    else
       Write("请联系管理员");