四则运算
namespace Chapter四则运算
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public static int Count = 0;
private int t = 60;
public static int right = 0;
private void button1_Click_1(object sender, EventArgs e)
{
label4.Text = t.ToString();
timer1.Enabled = true;
timer1.Interval = 1000;
timer1.Start();
RandomNum();
}
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 timer1_Tick(object sender, EventArgs e)
{
if (t <= 0)
{
timer1.Enabled = false;
textBox3.Enabled = false;
MessageBox.Show("时间到！");
textBox3.Enabled = false;
Form2 frm2 = new Form2();
frm2.ShowDialog();
}
t = t - 1;
label4.Text = t.ToString();
}
private void button3_Click(object sender, EventArgs e)
{
label1.Text = "+";
}
private void button4_Click(object sender, EventArgs e)
{
label1.Text = "-";
}
private void button5_Click(object sender, EventArgs e)
{
label1.Text = "*";
}
private void button6_Click_1(object sender, EventArgs e)
{
label1.Text = "/";
}
private void textBox3_KeyDown_1(object sender, KeyEventArgs e)
{
int sum;
string m = label1.Text;
switch (m)
{
case "+":
sum = int.Parse(textBox1.Text) + int.Parse(textBox2.Text);
break;
case "-":
sum = int.Parse(textBox1.Text) - int.Parse(textBox2.Text);
break;
case "*":
sum = int.Parse(textBox1.Text) * int.Parse(textBox2.Text);
break;
default:
sum = int.Parse(textBox1.Text) / int.Parse(textBox2.Text);
break;
}
if (e.KeyCode == Keys.Enter)
{
if (textBox3.Text == sum.ToString())
{
right++;
Count++;
RandomNum();
}
else
Count++;
RandomNum();
}
}
private void button2_Click_1(object sender, EventArgs e)
{
textBox3.Enabled = false;
Form2 frm = new Form2();
frm.ShowDialog();
}
}
}
总结:
C#书上有一个让做加法的编程，当看到第二次作业时感觉可以类比着做，开始做，
的确遇到了困难，不知从何做起，平时也只是按照书敲敲代码，也不怎么明白。当同学
们陆续上交作业后，我查看了，找到了思路，自己试着慢慢做，查了书上的代码，最终
成功完成了，虽然这次有部分是参考别人的才完成的，不过能学以自用，变成自己的感
觉也是棒棒哒！在做这道作业的过程中也学到了不少知识，感觉到了编程的奇妙。以后
要加油了，希望下次能独立完成老师布置的作业！
