C#窗體條形圖記錄

代碼如下：

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;
using System.IO;

namespace CCIMS
{
    public partial class Form_SeatingArrangement : Form
    {
      
        //-------------
        public static int height = 800, width = 1800;
        public static Bitmap bitmap = new Bitmap(width, height);
        //創建Graphics類對象 
        public static Graphics g = Graphics.FromImage(bitmap);
        public static F