chart1.ChartAreas.Clear();

ChartArea a1 = new ChartArea("ChartArea1");
a1.Area3DStyle.Enable3D = false;
a1.BackColor = System.Drawing.Color.FromArgb(255, 255, 192);

this.chart1.ChartAreas.Add(a1);
chart1.Series.Clear();
chart1.Series.Add("Series1");
// chart1.ChartAreas[0].Area3DStyle.Enable3D = true;
chart1.Series["Series1"].IsVisibleInLegend = true;
chart1.Series["Series1"].LegendText = "出現個数";
chart1.Series["Series1"].IsValueShownAsLabel = false;
chart1.Series["Series1"].ChartType = SeriesChartType.Column;
chart1.Series["Series1"].BorderWidth = 3;
chart1.Series["Series1"].Color = Color.Blue;
chart1.Series["Series1"].YAxisType = AxisType.Secondary;
System.Windows.Forms.DataVisualization.Charting.Series series1 = new System.Windows.Forms.DataVisualization.Charting.Series();

var dataG = new int[vari.varAmount];
var str = new string[vari.varAmount];

for (int i = 0; i < vari.varAmount; i++)
{
dataG[i] = noby.ToInt32(listView1.Items[kpumoku].SubItems[i + 1].Text);
chart1.Series["Series1"].Points.AddXY(i + 1, dataG[i]);
}