一、具体代码

Default2.aspx.cs

public partial class Chapter1_Default2 : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {          }    int a = 0;    private int t;    public static int Count=0;    public static  int right=0;    protected void Button1_Click(object sender, EventArgs e)    {        int a = int.Parse(TextBox1.Text.Trim());        int b = int.Parse(TextBox3.Text.Trim());        Char c = Convert.ToChar(TextBox2.Text.Trim());        Lei con = new Lei();        con.Max(a, b, c);        if (con.Answer == int.Parse(TextBox4.Text.Trim()))        {            Label1.Text=("恭喜你，小朋友！回答正确！");            Label1.ForeColor=Color.Blue;            right++;                    }        else        {            Label1.Text = ("回答错误，继续加油！小朋友");            Label1.ForeColor = Color.Red;                   }           }      protected void Button2_Click(object sender, EventArgs e)    {        Count++;        StreamWriter baocun1 = File.AppendText("C:\\baocun1.txt");        baocun1.WriteLine(TextBox1.Text);        baocun1.Close();        StreamWriter baocun2 = File.AppendText("C:\\baocun2.txt");        baocun2.WriteLine(TextBox2.Text);        baocun2.Close();        StreamWriter baocun3 = File.AppendText("C:\\baocun3.txt");        baocun3.WriteLine(TextBox3.Text);        baocun3.Close();        ListBox1.Items.Add(TextBox1.Text + TextBox2.Text + TextBox3.Text + "=");        TextBox1.Text = "";        TextBox2.Text = "";        TextBox3.Text = "";    }    protected void Button3_Click(object sender, EventArgs e)    {        TextBox1.BackColor = Color.Yellow;        TextBox2.BackColor = Color.Yellow;        TextBox3.BackColor = Color.Yellow;        TextBox4.BackColor = Color.Yellow;        TextBox1.Enabled = false;        TextBox2.Enabled = false;        TextBox3.Enabled = false;        string[] m = new string[100];        m = File.ReadAllLines("C:\\baocun1.txt");        TextBox1.Text = m[a];        string[] n = new string[100];        n = File.ReadAllLines("C:\\baocun2.txt");        TextBox2.Text = n[a];        string[] v = new string[100];        v = File.ReadAllLines("C:\\baocun3.txt");        TextBox3.Text = v[a];        a++;                            }    protected void Button4_Click(object sender, EventArgs e)    {        TextBox1.Text = "";        TextBox2.Text = "";        TextBox3.Text = "";        TextBox4.Text = "";        Label1.Text = "";    }    protected void Button5_Click(object sender, EventArgs e)    {        Label6.Text = "总计";        Label7.Text = "正确";        Label8.Text = "正确率";        Label3.Text = Count.ToString();        Label4.Text = right.ToString();        Label5.Text = ((right / (double)(Count)) * 100).ToString() + "%";    }       }

封装代码：

类代码要写在App_Code里

 

 

 

public class Lei{        public int Sum;                public int Answer        {            get { return Sum; }        }        public int Max(int n1,int n2,char yunsuanfu)        {            if (yunsuanfu == '+')            {                return Sum = n1 + n2;            }            else if (yunsuanfu == '-')            {                                   return Sum = n1 - n2;                                           }            else if (yunsuanfu == '/')            {                                   return Sum = n1 / n2;                            }            else if (yunsuanfu == '*')            {                return Sum = n1 * n2;            }            return Sum;        }    }

二、测试