理论：所谓泛型，即通过参数化类型来实现在同一份代码上操作多种数据类型。泛型编程是一种编程范式，它利用“参数化类型”将类型抽象化，从而实现更为灵活的复用。
C#泛型赋予了代码更强的类型安全，更好的复用，更高的效率，更清晰的约束。

 

只看概念很晕，ＯＫ，写了一段代码，一看就知道了：

 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }

            TestStack<int> myTestStack = new TestStack<int>(3);//整形实例化
            TestStack<string> myTestStack2 = new TestStack<string>(3);//字符串实例化

            private void button1_Click(object sender, EventArgs e)
            {
                myTestStack.Push(1);
                myTestStack.Push(2);

                myTestStack2.Push("韩晓鹏");
                myTestStack2.Push("黄萍");
            }

                private void button2_Click(object sender, EventArgs e)
                {
                    if (myTestStack.size > 0)
                    {
                        MessageBox.Show(myTestStack.Pop().ToString());
                    }
                    else
                    {
                        MessageBox.Show("没有整形啦");
                    }
                }

                private void button3_Click(object sender, EventArgs e)
                {
                    if (myTestStack2.size > 0)
                    {
                        MessageBox.Show(myTestStack2.Pop().ToString());
                    }
                    else
                    {
                        MessageBox.Show("没有字符串啦");
                    }
                }
            }

        public class TestStack<T>///定义一个栈
        {
            private T[] store;//栈的存储器
            public int size;//栈的指针

            /// <summary>
            /// 构造函数
            /// </summary>
            /// <param name="n">初始化大小</param>
            public TestStack(int n)
            {
                store = new T[n];
                size = 0;//指向第一个位置
            }

            /// <summary>
            /// 进栈
            /// </summary>
            /// <param name="x"></param>
            public void Push(T x)
            {
                store[size++] = x;
            }

            /// <summary>
            /// 出栈
            /// </summary>
            /// <param name="x"></param>
            public T Pop()
            {
               return store[--size];
            }

        }

 
}

 

以上代码测试环境vs2005,三个按钮，一个进栈，两个为出栈。

有问题联系老韩。