Winforms -如何在x轴数据点之间获取标签

using System;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;

namespace WinformsChartExample
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // 添加一个Chart控件到窗体
            Chart chart1 = new Chart();
            chart1.Dock = DockStyle.Fill;
            this.Controls.Add(chart1);

            // 创建一个Series并设置XValueType为Double
            Series series = new Series("Data");
            series.XValueType = ChartValueType.Double;

            // 添加数据点到Series
            series.Points.AddXY(1, 10);
            series.Points.AddXY(2, 20);
            series.Points.AddXY(3, 30);
            series.Points.AddXY(4, 40);
            series.Points.AddXY(5, 50);

            // 将Series添加到Chart控件中
            chart1.Series.Add(series);

            // 获取x轴对象
            Axis xAxis = chart1.ChartAreas[0].AxisX;

            // 添加自定义标签
            xAxis.CustomLabels.Add(1.5, 2.5, "Label 1");
            xAxis.CustomLabels.Add(2.5, 3.5, "Label 2");
            xAxis.CustomLabels.Add(3.5, 4.5, "Label 3");
            xAxis.CustomLabels.Add(4.5, 5.5, "Label 4");

            // 设置自定义标签的外观
            foreach (CustomLabel label in xAxis.CustomLabels)
            {
                label.ForeColor = Color.Red;
                label.BackColor = Color.Yellow;
                label.Font = new Font("Arial", 10, FontStyle.Bold);
            }
        }
    }
}