WPF四则运算《《《《《策略模式

设计思路：

          因为之前没有用过WPF，听说和window窗体语法类似，就想着仿照之前的Window窗体做的，首先用三个textbox存储数据，添加一个comboBox，利用索引选择运算方式，用Count和Right分别计算答题总数和对的数目，结束运算弹出Form1对话框，显示做题结果。

arictor.cs

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

namespace Counter
{
    class arictor
    {
         public interface Calculator        //声明计算接口
        {
            double Cal(double x, double y);
        }
        private double x;                //定义x变量；

        public double X                  //封装字段
        {
            get { return x; }
            set { x = value; }

        }
        private double y;               //定义y变量


        public double Y                  //封装字段
        {
            get { return y; }
            set { y = value; }

        }
        public class Add : Calculator            //接口法运算
        {
            public double Cal(double x, double y)
            {
                double result = 0;
                result = x + y;
                return result;
            }
        }
        public class Sub : Calculator 
        {
            public double Cal(double x, double y)
            {
                double result = 0;
                result = x - y;
                return result;
            }
        }
        public class Mul : Calculator 
        {
            public double Cal(double x, double y)
            {
                double result = 0;
                result = x * y;
                return result;
            }
        }
        public class Div : Calculator  
        {
            public double Cal(double x, double y)
            {
                double result = 0;
                result = x / y;
                return result;
            }
        }
        public class Opear                  //定义运算符  
        {
            private Calculator calculate;
            public Opear(Calculator calculate)
            {
                this.calculate = calculate;
            }
            public double Cal(double x, double y, String op)  //返回运算结果
            {
                return this.calculate.Cal(x, y);
            }
        }
    }
}

MianWindow代码实现

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;

namespace Counter
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
        public static int Count = 0;               //计算所做的题数
        public static int Right = 0;               //回答正确的题数
        private void comboBox1_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {

        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
              string op =comboBox1.SelectedItem.ToString();
          double x = Convert.ToDouble(textBox1.Text); 
            double y = Convert.ToDouble(textBox2.Text); //把方法中定义的x,y赋值给textBox1和textBox2
            Counter.arictor.Opear opear =null;
          if (comboBox1.SelectedIndex == 0)    //取comboBox1的索引
          {
              opear = new Counter.arictor.Opear(new Counter.arictor.Add());    
          }
          else if (comboBox1.SelectedIndex == 1)
          {
            opear  = new Counter.arictor.Opear(new Counter.arictor.Sub());    
          }
          else if (comboBox1.SelectedIndex == 2)
          {
              opear = new Counter.arictor.Opear(new Counter.arictor.Mul());
          }
          else if (comboBox1.SelectedIndex == 3)
          {
             opear = new Counter.arictor.Opear(new Counter.arictor.Div());
          }
          string answer = opear.Cal(x, y, op).ToString(); 
         // string result = textBox1.Text + comboBox1.SelectedItem.ToString() + textBox2.Text;
          if (textBox3.Text == answer)                                 
          {
              MessageBox.Show("回答正确！");
              Count++;
              Right++;
          }
  
          else                                                       
          {   
              MessageBox.Show("回答错误！");  
              Count++;
          }
          textBox1.Text = "";             
          textBox2.Text = "";
          textBox3.Text = "";  
      }

        private void button2_Click(object sender, RoutedEventArgs e)
        {
            结果 form = new 结果();
            form.ShowDialog();
        }
     }
        }
    

Form1.cs代码

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

namespace Counter
{
    public partial class 结果 : Form
    {
        public 结果()
        {
            InitializeComponent();
        }

        private void 结果_Load(object sender, EventArgs e)
        {
            textBox1.Text = MainWindow.Count.ToString();
            textBox2.Text = MainWindow.Right.ToString();
            textBox3.Text = ((MainWindow.Right / (double)(MainWindow.Count)) * 100).ToString() + "%";
        }
    }
}

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

namespace Counter
{
    public partial class 结果 : Form
    {
        public 结果()
        {
            InitializeComponent();
        }

        private void 结果_Load(object sender, EventArgs e)
        {
            textBox1.Text = MainWindow.Count.ToString();
            textBox2.Text = MainWindow.Right.ToString();
            textBox3.Text = ((MainWindow.Right / (double)(MainWindow.Count)) * 100).ToString() + "%";
        }
    }
}

运行结果：

开始做题：

回答正确：

回答错误：

结束运算：

总结：

      这次是用WPF实现的运算，感觉语法和Window窗体没有太大区别，在形式上和.NET更为相似。因为之前没有用过WPF，在做的过程中遇到好多困难，还好最后都解决了。从这次作业中可以感受到什么叫做学无止境。