第三次作业
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Calculator
{
public partial class Form1 : Form
{
public int Count = 0;
public int right = 0;
private int t = 60;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
comboBox1.SelectedIndex = 0;
}
private void RandomNum()
{
Random ran = new Random();
int n1, n2;
n1 = ran.Next(1, 11);
n2 = ran.Next(1, 11);
txtNum1.Text = n1.ToString();
txtNum2.Text = n2.ToString();
//if (comboBox1.Text == "-")
switch (comboBox1.Text)
{
case "-":
while (true)
{
if (int.Parse(txtNum1.Text) >= int.Parse(txtNum2.Text))
{
break;
}
n1 = ran.Next(1, 11);
n2 = ran.Next(1, 11);
txtNum1.Text = n1.ToString();
txtNum2.Text = n2.ToString();
}
break;
case "/":
break;
}
txtResult.Text = "";
Count++;
}
private void btnStop_Click(object sender, EventArgs e)
{
timer1.Enabled = false;
txtResult.Enabled = false;
MessageBox.Show("正确的题目数为："+right+"错误的题目为："+(Count-right-1));
}
private void btnStart_Click(object sender, EventArgs e)
{
try
{
t = int.Parse(txtTime.Text);
if (t<=0)
{
MessageBox.Show("时间不能为负数");
return;
}
label1.Text = t.ToString();
txtTime.Enabled = false;
}
catch (Exception)
{
MessageBox.Show("请输入正确的时间");
return;
}
txtResult.Enabled = true;
timer1.Enabled = true;
timer1.Interval = 1000;
timer1.Start();
RandomNum();
}
private void txtResult_KeyDown(object sender, KeyEventArgs e)
{
int result;
if (e.KeyCode == Keys.Enter)
{
switch (comboBox1.Text)
{
case "+":
result = int.Parse(txtNum1.Text) + int.Parse(txtNum2.Text);
break;
case "-":
result = int.Parse(txtNum1.Text) - int.Parse(txtNum2.Text);
break;
case "*":
result = int.Parse(txtNum1.Text) * int.Parse(txtNum2.Text);
break;
default :
result = int.Parse(txtNum1.Text) / int.Parse(txtNum2.Text);
break;
}
if (txtResult.Text == Convert.ToString(result))
{
right++;
}
RandomNum();
}
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
}
private void timer1_Tick(object sender, EventArgs e)
{
if (t <= 0)
{
timer1.Enabled = false;
txtResult.Enabled = false;
MessageBox.Show("时间到！");
//txtResult.Enabled = false;
txtResult.Enabled = false;
txtTime.Enabled = true;
MessageBox.Show("正确的题目数为：" + right + "错误的题目为：" + (Count - right-1));
}
t = t - 1;
label1.Text = t.ToString();
}
}
总结：通过这次作业我对程序对c#有了更深入的了解，加深了基础，实际上这次作业我的贡献不大，大部分是我的伙伴张峰完成。就在这过程中我依然收或不小，在看书查资料中巩固了学习的知识。我们一起解决遇到的各种问题，增长了知识也加深了友谊，还有完成代码之后的喜悦感，这次作业让我收获很多。
