进行十之内的四则运算

1.需求分析

　　环境:C#窗体应用程序.

　　功能需求:

　　　　响应:　　　　字母键1234选择加减乘除,　　enter键结束程序显示统计结果.

　　　　输入数据:　　随机1~10整数,　　接收整数答案.

　　　　输出数据:　　运算结果,　　判断对错,　统计答对答错数量.

2.具体设计思路

　　Form1(运算窗体)

　　　　产生1~10的random整数并在两个文本框中显示

　　　　字母键qwer对应运算符＋－×÷

　　　　判断用户输入的结果是否正确,right++||wrong++

　　      按下结束(enter)后调用Form2.

　　Form2(统计结果)

　　　　显示答对的数量&显示答错的数量

3.代码实现

namespace Elementary_Arithmetic
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        public static int right = 0;
        public static int wrong = 0;
        private void RandomNum()
        {
            Random ran = new Random();
            int n1, n2;
            n1 = ran.Next(1, 11);
            n2 = ran.Next(1, 11);
            textBox1.Text = n1.ToString();
            textBox2.Text = n2.ToString();
            textBox3.Text = "";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            label4.Text = "+";
        }

        private void button2_Click(object sender, EventArgs e)
        {
            label4.Text = "-";
        }

        private void button3_Click(object sender, EventArgs e)
        {
            label4.Text = "×";
        }

        private void button4_Click(object sender, EventArgs e)
        {
            label4.Text = "÷";
        }

        private void button5_Click(object sender, EventArgs e)
        {
            int math;
            if (label4.Text == "+")
                math = int.Parse(textBox1.Text) + int.Parse(textBox2.Text);
            else if (label4.Text == "-")
                math = int.Parse(textBox1.Text) - int.Parse(textBox2.Text);
            else if (label4.Text == "×")
                math = int.Parse(textBox1.Text) * int.Parse(textBox2.Text);
            else math = int.Parse(textBox1.Text) / int.Parse(textBox2.Text);
            if (textBox3.Text == math.ToString())
                right++;
            else wrong++;
            RandomNum();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            RandomNum();
        }

        private void button6_Click(object sender, EventArgs e)
        {
            Form2 frm2 = new Form2();
            frm2.ShowDialog();
        }

        private void button6_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                Form2 frm2 = new Form2();
                frm2.ShowDialog();
            }
        }

        private void button1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Q)
            {
                label4.Text = "+";
            }
        }

        private void button2_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.W)
            {
                label4.Text = "-";
            }
        }

        private void button3_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.E)
            {
                label4.Text = "×";
            }
        }

        private void button4_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.R)
            {
                label4.Text = "÷";
            }
        }
    }
}

namespace Elementary_Arithmetic
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void Form2_Load(object sender, EventArgs e)
        {
            textBox1.Text = Form1.right.ToString();
            textBox2.Text = Form1.wrong.ToString();
        }
    }
}

 

4.测试

 

5.PSP耗时分析

 

6.总结

测试的时候发现文本框的焦点和响应按键有冲突,影响不大,没有发现别的问题.

此次做业,我尽力了,加油!

7.Github托管

https://github.com/4Aiur/4arithmetic