c#学习-1-简易计算器

编辑各个按钮

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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 WpfApp1
{

    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
        double i, j, k;
        string a;
        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "1";
        }
        private void Button_Click_2(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "3";
        }
        private void Button_Click_3(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "4";
        }
        private void Button_Click_4(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "6";
        }
        private void Button_Click_5(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "7";
        }
        private void Button_Click_6(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "9";
        }
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "2";
        }
        private void Button_Click_7(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "5";
        }
        private void Button_Click_10(object sender, RoutedEventArgs e)
        {
            i = Convert.ToDouble(TextBox1.Text);
            a = "-";
            TextBox1.Text = "";
        }
        private void Button_Click_11(object sender, RoutedEventArgs e)
        {
            j = Convert.ToDouble(TextBox1.Text);
            switch (a)
            {
                case "+":
                    k = i + j;
                    break;
                case "-":
                    k = i - j;
                    break;
                case "*":
                    k = i * j;
                    break;
                case "/":
                    k = i / j;
                    break;
            }
            TextBox1.Text = k.ToString();
        }
        private void Button_Click_12(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "0";
        }
        private void Button_Click_13(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += ".";
        }
        private void Button_Click_14(object sender, RoutedEventArgs e)
        {
            i = Convert.ToDouble(TextBox1.Text);
            a = "*";
            TextBox1.Text = "";
        }
        private void Button_Click_15(object sender, RoutedEventArgs e)
        {
            i = Convert.ToDouble(TextBox1.Text);
            a = "/";
            TextBox1.Text = "";
        }
        private void Button_Click_16(object sender, RoutedEventArgs e)
        {
            TextBox1.Text = "";
        }
        private void Button_Click_8(object sender, RoutedEventArgs e)
        {
            TextBox1.Text += "8";
        }
        private void Button_Click_9(object sender, RoutedEventArgs e)
        {
            i = Convert.ToDouble(TextBox1.Text);
            a = "+";
            TextBox1.Text = "";
        }
    }
}