using System;
using System.Diagnostics;
using System.Windows.Forms;

namespace WindowsFormsApplication1

using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Windows.Forms;

public class Person
{
    private string _name;
    private int _age;

using System;
using System.Data;
using System.Data.SqlClient;

//创建 DataTable
DataTable categories = new DataTable("Categories");

//添加字段
DataColumn column = new DataColumn();

using System;
using System.Data;
using System.Data.SqlClient;
using System.Windows.Forms;

using System;
using System.Windows.Forms;
using System.Diagnostics;

namespace WindowsFormsApplication1

private void button1_Click(object sender, EventArgs e)
{
    using (Graphics graphics = this.CreateGraphics())
    {
        graphics.DrawString("木子屋:http://www.mzwu.com/", new Font("宋体", 15), new SolidBrush(Color.Red), 0, 0);