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

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 
 6 namespace Counter
 7 {
 8     class arictor
 9     {
10          public interface Calculator        //声明计算接口
11         {
12             double Cal(double x, double y);
13         }
14         private double x;                //定义x变量；
15 
16         public double X                  //封装字段
17         {
18             get { return x; }
19             set { x = value; }
20 
21         }
22         private double y;               //定义y变量
23 
24 
25         public double Y                  //封装字段
26         {
27             get { return y; }
28             set { y = value; }
29 
30         }
31         public class Add : Calculator            //接口法运算
32         {
33             public double Cal(double x, double y)
34             {
35                 double result = 0;
36                 result = x + y;
37                 return result;
38             }
39         }
40         public class Sub : Calculator 
41         {
42             public double Cal(double x, double y)
43             {
44                 double result = 0;
45                 result = x - y;
46                 return result;
47             }
48         }
49         public class Mul : Calculator 
50         {
51             public double Cal(double x, double y)
52             {
53                 double result = 0;
54                 result = x * y;
55                 return result;
56             }
57         }
58         public class Div : Calculator  
59         {
60             public double Cal(double x, double y)
61             {
62                 double result = 0;
63                 result = x / y;
64                 return result;
65             }
66         }
67         public class Opear                  //定义运算符  
68         {
69             private Calculator calculate;
70             public Opear(Calculator calculate)
71             {
72                 this.calculate = calculate;
73             }
74             public double Cal(double x, double y, String op)  //返回运算结果
75             {
76                 return this.calculate.Cal(x, y);
77             }
78         }
79     }
80 }

MianWindow代码实现

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Windows;
 6 using System.Windows.Controls;
 7 using System.Windows.Data;
 8 using System.Windows.Documents;
 9 using System.Windows.Input;
10 using System.Windows.Media;
11 using System.Windows.Media.Imaging;
12 using System.Windows.Navigation;
13 using System.Windows.Shapes;
14 
15 namespace Counter
16 {
17     /// 

18     /// MainWindow.xaml 的交互逻辑
19     /// 
20     public partial class MainWindow : Window
21     {
22         public MainWindow()
23         {
24             InitializeComponent();
25         }
26         public static int Count = 0;               //计算所做的题数
27         public static int Right = 0;               //回答正确的题数
28         private void comboBox1_SelectionChanged(object sender, SelectionChangedEventArgs e)
29         {
30 
31         }
32 
33         private void button1_Click(object sender, RoutedEventArgs e)
34         {
35               string op =comboBox1.SelectedItem.ToString();
36           double x = Convert.ToDouble(textBox1.Text); 
37             double y = Convert.ToDouble(textBox2.Text); //把方法中定义的x,y赋值给textBox1和textBox2
38             Counter.arictor.Opear opear =null;
39           if (comboBox1.SelectedIndex == 0)    //取comboBox1的索引
40           {
41               opear = new Counter.arictor.Opear(new Counter.arictor.Add());    
42           }
43           else if (comboBox1.SelectedIndex == 1)
44           {
45             opear  = new Counter.arictor.Opear(new Counter.arictor.Sub());    
46           }
47           else if (comboBox1.SelectedIndex == 2)
48           {
49               opear = new Counter.arictor.Opear(new Counter.arictor.Mul());
50           }
51           else if (comboBox1.SelectedIndex == 3)
52           {
53              opear = new Counter.arictor.Opear(new Counter.arictor.Div());
54           }
55           string answer = opear.Cal(x, y, op).ToString(); 
56          // string result = textBox1.Text + comboBox1.SelectedItem.ToString() + textBox2.Text;
57           if (textBox3.Text == answer)                                 
58           {
59               MessageBox.Show("回答正确！");
60               Count++;
61               Right++;
62           }
63   
64           else                                                       
65           {   
66               MessageBox.Show("回答错误！");  
67               Count++;
68           }
69           textBox1.Text = "";             
70           textBox2.Text = "";
71           textBox3.Text = "";  
72       }
73 
74         private void button2_Click(object sender, RoutedEventArgs e)
75         {
76             结果 form = new 结果();
77             form.ShowDialog();
78         }
79      }
80         }
81     

Form1.cs代码

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 
10 namespace Counter
11 {
12     public partial class 结果 : Form
13     {
14         public 结果()
15         {
16             InitializeComponent();
17         }
18 
19         private void 结果_Load(object sender, EventArgs e)
20         {
21             textBox1.Text = MainWindow.Count.ToString();
22             textBox2.Text = MainWindow.Right.ToString();
23             textBox3.Text = ((MainWindow.Right / (double)(MainWindow.Count)) * 100).ToString() + "%";
24         }
25     }
26 }

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 
10 namespace Counter
11 {
12     public partial class 结果 : Form
13     {
14         public 结果()
15         {
16             InitializeComponent();
17         }
18 
19         private void 结果_Load(object sender, EventArgs e)
20         {
21             textBox1.Text = MainWindow.Count.ToString();
22             textBox2.Text = MainWindow.Right.ToString();
23             textBox3.Text = ((MainWindow.Right / (double)(MainWindow.Count)) * 100).ToString() + "%";
24         }
25     }
26 }

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。

转载于:https://www.cnblogs.com/thinking-star/p/5042710.html