C#使用泛型方法实现操作不同数据类型的数组

// 使用一个泛型方法对不同类型的数组进行操作
namespace _127
{
    public partial class Form1 : Form
    {
        private Button? button1;
        private Button? button2;
        private Button? button3;
 
        public Form1()
        {
            InitializeComponent();
            StartPosition = FormStartPosition.CenterScreen;
            Load += Form1_Load;
        }
        private void Form1_Load(object? sender, EventArgs e)
        {
            button1 = new Button();
            button2 = new Button();
            button3 = new Button();
            SuspendLayout();
            // 
            // button1
            // 
            button1.Location = new Point(21, 28);
            button1.Name = "button1";
            button1.Size = new Size(75, 23);
            button1.TabIndex = 0;
            button1.Text = "字符串";
            button1.UseVisualStyleBackColor = true;
            button1.Click += Button1_Click;
            // 
            // button2
            // 
            button2.Location = new Point(106, 28);
            button2.Name = "button2";
            button2.Size = new Size(75, 23);
            button2.TabIndex = 1;
            button2.Text = "整数";
            button2.UseVisualStyleBackColor = true;
            button2.Click += Button2_Click;
            // 
            // button3
            // 
            button3.Location = new Point(191, 28);
            button3.Name = "button3";
            button3.Size = new Size(75, 23);
            button3.TabIndex = 2;
            button3.Text = "布尔";
            button3.UseVisualStyleBackColor = true;
            button3.Click += Button3_Click;
            // 
            // Form1
            // 
            AutoScaleDimensions = new SizeF(7F, 17F);
            AutoScaleMode = AutoScaleMode.Font;
            ClientSize = new Size(284, 81);
            Controls.Add(button3);
            Controls.Add(button2);
            Controls.Add(button1);
            Name = "Form1";
            Text = "泛型查找不同数组中的值";
        }
        /// <summary>
        /// 声明一个字符串类型的数组
        /// 调用泛型方法，查找字符串“三”在数组中的索引
        /// </summary>
        private void Button1_Click(object? sender, EventArgs e)
        {
            string[] str = ["一", "二", "三", "四", "五", "六", "七", "八", "九"];
            MessageBox.Show(Finder.Find(str, "三").ToString());
        }
        /// <summary>
        /// 声明一个整数类型的数组
        /// 调用泛型方法，查找数字5在数组中的索引
        /// </summary>
        private void Button2_Click(object? sender, EventArgs e)
        {
            int[] IntArray = [1, 2, 3, 4, 5, 6, 7, 8, 9];
            MessageBox.Show(Finder.Find(IntArray, 5).ToString());
        }
        /// <summary>
        /// 声明一个布尔类型的数组
        /// 调用泛型方法，查找false在数组中的索引
        /// </summary>
        private void Button3_Click(object? sender, EventArgs e)
        {
            bool[] IntArray = [true, false];
            MessageBox.Show(Finder.Find(IntArray, false).ToString());
        }
        /// <summary>
        /// 定义一个类
        /// 在类中，定义一个泛型方法，用来查找指定值在数组中的索引
        /// 遍历泛型数组
        /// </summary>
        public class Finder
        {
            public static int Find<T>(T[] items, T item)
            {
                for (int i = 0; i < items.Length; i++)
                {
                    if (items[i]!.Equals(item)) //判断是否找到了指定值
                    {
                        return i;               //返回指定值在数组中的索引
                    }
                }
                return -1;                      //如果没有找到，返回-1
            }
        }
    }
}