C#学习8

C#学习8:建一个WPF文件，实现表达式求值，界面比较简陋，添加了一张背景图片，添加背景图片的代码是

[csharp]
<Grid.Background>
<ImageBrush ImageSource="/表达式求值;component/Images/1.jpg" />
</Grid.Background>
再修改background的属性即可

输入的表达式形如：((1+2)*5+1)/4=

[csharp]
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 表达式求值
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        int[,] map = new int[7, 7] { {1,1,-1,-1,-1,1,1},    // 算符间的优先关系
                                      {1,1,-1,-1,-1,1,1},
                                      {1,1,1,1,-1,1,1},
                                      {1,1,1,1,-1,1,1},
                                      {-1,-1,-1,-1,-1,0,100},
                                      {1,1,1,1,100,1,1},
                                      {-1,-1,-1,-1,-1,100,0}
                                   };
        char[]str=new char[1005];
        char[]optr = new char[1005];
        double[]opnd = new double[1005];
        int t1, t2, k, len;
        char ch, zz;
        int temp1, temp2;
        double a, b;
        public MainWindow()
        {
            InitializeComponent();
        }
        public int cam(char c)
        {
            switch (c)
            {
                case '+': return 0;
                case '-': return 1;
                case '*': return 2;
                case '/': return 3;
                case '(': return 4;
                case ')': return 5;
                case '#': return 6;
                default: return -1;
            }
        }
        public double sol(double x, char c, double y)
        {
            switch (c)
            {
                case '+': return x + y;
                case '-': return x - y;
                case '*': return x * y;
                case '/': return x / y;
                default: return -1;
            }
        }
        public int z(char c)
        {
            if ('0' <= c && c <= '9' || c == '.')
                return 1;
            if (c == ' ')
                return -1;
            return 0;
        }
        private void button2_Click(object sender, RoutedEventArgs e)
        {
            this.Close();
        }
        private void button1_Click(object sender, RoutedEv

补充：软件开发 , C# ,