计算器

时间：2015-12-03 15:34:42 阅读：182 评论：0 收藏：0 [点我收藏+]

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设计思路：

用Winform窗体设计，在第一个数和第二个数的文本框中输入数值，单击录题按钮，数值保存在n1,n2文档中,把要做的题都保存完后，单击开始按钮，此时计时开始，开始做题，每做完一道题，按Enter键，进入下一题，同时提示回答是否正确。如果在时间内做完题就单击结束按钮，弹出对话框“答题结束”，否则当限制时间到就提示“时间到”。

Form1的设计为：

技术分享

Form1.cs的代码：

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;
using System.IO;
namespace szys.c
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        public static int Count = 0;//总计的个数
        private int t = 60;//限制的时间为60s
        public static int right = 0;//正确的个数
        int n = 0;

        //四个button的单击事件，分别赋值lable1为+，-，*，/
        private void button1_Click_1(object sender, EventArgs e)
        {
            label1.Text = "+";
            label1.Visible = true;
        }

        private void button2_Click_1(object sender, EventArgs e)
        {
            label1.Text = "-";
            label1.Visible = true;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            label1.Text = "*";
            label1.Visible = true;
        }
        private void button4_Click(object sender, EventArgs e)
        {
            label1.Text = "/";
            label1.Visible = true;
        }

        
        private void button5_Click_1(object sender, EventArgs e)
        {
            label8.Text = t.ToString();
            timer1.Enabled = true;
            timer1.Interval = 1000;
            timer1.Start();
            string[] n1 = new string[100];
            n1 = File.ReadAllLines("n1.txt");
            textBox1.Text = n1[n];
            string[] n2 = new string[100];
            n2 = File.ReadAllLines("n2.txt");
            label1.Text = n2[n];
            string[] n3 = new string[100];
            n3 = File.ReadAllLines("n3.txt");
            textBox2.Text = n3[n];
            n++;
        }
        //开始的单击事件，运用算法
        private void button6_Click_1(object sender, EventArgs e)
        {
            textBox3.Enabled = false;
            MessageBox.Show("运算结束！");
            textBox4.Text = Form1.Count.ToString();//题目总数
            textBox5.Text = Form1.right.ToString();//正确的个数
            textBox6.Text = ((Form1.right / (double)(Form1.Count)) * 100).ToString() + "%";//正确率
        }
        //结束的单击事件

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (t <= 0)
            {
                timer1.Enabled = false;
                textBox3.Enabled = false;
                MessageBox.Show("时间到了！");
            }
            t = t - 1;
            label8.Text = t.ToString();
        }
        private void button7_Click(object sender, EventArgs e)//录题存放文件夹
        {
            StreamWriter n1 = File.AppendText("n1.txt");//第一个数存入第一文档
            n1.WriteLine(textBox1.Text);
            n1.Close();
            StreamWriter n2 = File.AppendText("n2.txt");//第二个数存入第二个文档
            n2.WriteLine(label1.Text);
            n2.Close();
            StreamWriter n3 = File.AppendText("n3.txt");//结果存入第三个文档
            n3.WriteLine(textBox2.Text);
            n3.Close();
            textBox1.Clear();
            textBox2.Clear();
            textBox3.Clear();
            MessageBox.Show("录题成功");
        }

        private void textBox3_KeyDown(object sender, KeyEventArgs e)//对类的调用
        {
            int a = int.Parse(textBox1.Text);
            int b = int.Parse(textBox2.Text);
            Char c = Convert.ToChar(label1.Text);
            Class1 con = new Class1();
            con.js(a, b, c);
            if (e.KeyCode == Keys.Enter)//做完每一题按enter键进入下一题
            {

                if (con.y1 == int.Parse(textBox3.Text))
                {
                    MessageBox.Show("回答正确！下一题请按开始按钮！");
                    right++;
                    Count++;
                }

                else
                {

                    MessageBox.Show("回答错误！下一题请按开始按钮！");
                    Count++;

                }
                //清空
                textBox3.Clear();
                textBox1.Clear();
                textBox2.Clear();
                timer1.Enabled = false;

            }
        }
    
    }
}

Class.cs的代码

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

namespace szys.c
{
    class Class1
    {
        public int result;
        public int y1
        {
            get
            {
                return result;
            }
        }

        public int js(int n1, int n2, char mark)
        {
            if (mark == ‘+‘)
            {
                return result= n1 + n2;
            }
            else if (mark == ‘-‘)
            {
                return result = n1 - n2;
            }
            else if (mark == ‘*‘)
            {
                return result = n1 * n2;
            }
            else if (mark == ‘/‘)
            {
                return result= n1 / n2;
            }
            return result;

        }
    }
}