在WPF里实现计算器软件

一、具体代码

类代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;

namespace WpfApplication1
{
    class lei
    {
        public interface Strategy
        {
            int calculate(int a, int b);

        }
        public class Add : Strategy
        {
            public int calculate(int a, int b)
            {
                return a + b;
            }
        }
        public class Sub : Strategy
        {
            public int calculate(int a, int b)
            {
                return a -b;
            }
        }
        public class Mul : Strategy
        {
            public int calculate(int a, int b)
            {
                return a * b;
            }
        }
        public class Div : Strategy
        {
            public int calculate(int a, int b)
            {
                return a / b;
            }
        }

        public class Content
        {
            private Strategy strategy;
            public Content(Strategy strategy)
            {
                this.strategy = strategy;
            }
            public int calculate(int a, int b, String m)
            {
                return this.strategy.calculate(a, b);
            }
        }
    }
}

MainWindow.xaml.cs代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;

using System.Windows.Threading;
using Microsoft.Win32;

namespace WpfApplication1
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
        string path = ".\text1.txt";
        public static int right = ;
        public static int Count = ;
        private int t;
         int a;
        private void button1_Click(object sender, RoutedEventArgs e)
        {

            StreamWriter baocun1 = File.AppendText("baocun1.txt");
            baocun1.WriteLine(textBox1.Text);
            baocun1.Close();
            StreamWriter baocun2 = File.AppendText("baocun2.txt");
            baocun2.WriteLine(textBox2.Text);
            baocun2.Close();
            StreamWriter baocun3 = File.AppendText("baocun3.txt");
            baocun3.WriteLine(textBox3.Text);
            baocun3.Close();

            textBox6.Text += textBox1.Text + textBox2.Text + textBox3.Text + label1.Content + textBox4.Text + "\n";
            textBox1.Clear();
            textBox2.Clear();
            textBox3.Clear();
        }

        private void button2_Click(object sender, RoutedEventArgs e)
        {
            textBox5.Text = t.ToString();
            DispatcherTimer myTimer = new DispatcherTimer();
            myTimer.Interval = new TimeSpan(, , ,);
            myTimer.Tick += new EventHandler(Timer_Tick);
            myTimer.Start();
            string[] m = new string[];
            m = File.ReadAllLines("baocun1.txt");
            textBox1.Text = m[a];
            string[] n = new string[];
            n = File.ReadAllLines("baocun2.txt");
            textBox2.Text = n[a];
            string[] v = new string[];
            v = File.ReadAllLines("baocun3.txt");
            textBox3.Text = v[a];
            a++;
        }

        void Timer_Tick(object send, EventArgs e)
        {
            t = t + ;
            textBox5.Text = t.ToString();

        }

        private void button3_Click(object sender, RoutedEventArgs e)
        {
            //调用;
            WpfApplication1.lei.Content content = null;
            int a = int.Parse(textBox1.Text);
            int b = int.Parse(textBox3.Text);
            string m = textBox2.Text;
            switch (m)
            {
                case "+":
                    content = new WpfApplication1.lei.Content(new WpfApplication1.lei.Add());
                    break;
                case "-":
                    content = new WpfApplication1.lei.Content(new WpfApplication1.lei.Sub());

                    break;
                case "*":
                    content = new WpfApplication1.lei.Content(new WpfApplication1.lei.Mul());

                    break;
                case "/":
                    content = new WpfApplication1.lei.Content(new WpfApplication1.lei.Div());

                    break;
                default:
                    break;
            }
            string answer = content.calculate(a, b, m).ToString();

            if (textBox4.Text == answer.ToString())
            {
                MessageBox.Show("恭喜你，小朋友！回答正确！");
                right++;
                Count++;

            }
            else
            {
                MessageBox.Show("回答错误，继续加油！小朋友");
                Count++;
            }

            textBox1.Clear();
            textBox2.Clear();
            textBox3.Clear();
            textBox4.Clear();
        }

        private void button4_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("一共用时" + textBox5.Text + "秒");
            Window1 win = new Window1();
            win.ShowDialog();
        }

    }
}

Window.xaml.cs代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace WpfApplication1
{
    /// <summary>
    /// Window1.xaml 的交互逻辑
    /// </summary>
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            textBox1.Text = MainWindow.Count.ToString();
            textBox2.Text = MainWindow.right.ToString();
            textBox3.Text = ((MainWindow.right / (double)(MainWindow.Count)) * ).ToString() + "%";
        }
    }
}

二、测试

三、总结

在WPF里实现计算器程序跟在WinForm里差不多，就是有些控件的用法有点区别，还有就是没有时间控件，得自己写代码实现，然后就上网搜了搜，很庆幸写出来了。