受队友诱惑，去听了李强的C#公选课，第二天就完成作业了。

作业要求：

1. 小学生加法程序；

2. 能自由设置难度；

3. 对结果进行统计。

第一次写C#程序，遇到不少困难，和队友讨论，百度谷歌一齐上。

让同学帮忙测试，找出十多处Bug，一一修改。

本来挺好看的代码，被我改成一坨屎了都。T-T

上图：

下载地址：

http://files.cnblogs.com/haipzm/AdditionGame.zip
贴上各个窗体和一个公共类的主要代码，程序中还有些小Bug，不过已经不想修改了。
Setting.cs
 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;

 namespace AdditionGame

 {

     public partial class Setting : Form

     {

         public Setting()

         {

             InitializeComponent();

         }

         private void Form1_Load(object sender, EventArgs e)

         {

             textBox1.Text = "";

             textBox2.Text = "";

             textBox1.Focus();

         }

         private void button1_Click(object sender, EventArgs e)

         {

             textBox1.Text = "";

             textBox2.Text = "";

             textBox1.Focus();

         }

         private void Form1_Activated(object sender, EventArgs e)

         {

             textBox1.Text = "";

             textBox2.Text = "";

             textBox1.Focus();

         }

         private void button2_Click(object sender, EventArgs e)

         {

             if (textBox1.Text == "" || textBox2.Text == "")

             {

                 Error f7 = new Error(this);

                 f7.Show();

                 this.Hide();

             }

             else

             {

                 bool Flag = true;

                 string Str1 = Convert.ToString(textBox1.Text);

                 if (Str1.Length > )

                     Flag = false;

                 else

                     for (int i = ; i < Str1.Length; ++i)

                         if (Str1[i] < '' || Str1[i] > '')

                         {

                             Flag = false;

                             break;

                         }

                 string Str2 = Convert.ToString(textBox2.Text);

                 if (Str2.Length > )

                     Flag = false;

                 else

                     for (int i = ; i < Str2.Length; ++i)

                         if (Str2[i] < '' || Str2[i] > '')

                         {

                             Flag = false;

                             break;

                         }

                 if (Flag)

                 {

                     ClassCommon.Scope = Convert.ToInt32(textBox1.Text);

                     ClassCommon.Total = Convert.ToInt32(textBox2.Text);

                     if (ClassCommon.Scope ==  || ClassCommon.Total == )

                     {

                         Error f5 = new Error(this);

                         f5.Show();

                         this.Hide();

                     }

                     else

                     {

                         Playing f2 = new Playing(this);

                         f2.Show();

                         this.Hide();

                     }

                 }

                 else

                 {

                     Error f6 = new Error(this);

                     f6.Show();

                     this.Hide();

                 }

             }

         }

         private void button3_Click(object sender, EventArgs e)

         {

             this.Close();

         }

         private void button4_Click(object sender, EventArgs e)

         {

             About f3 = new About(this);

             f3.Show();

             this.Hide();

         }

     }

 }

Playing.cs

 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;

 namespace AdditionGame

 {

     public partial class Playing : Form

     {

         Form f1 = new Setting();

         public Playing(Setting firstForm)

         {

             InitializeComponent();

             f1 = firstForm;

         }

         private void Get_Random_Addend()

         {

             Random seed = new Random();

             Random Addend = new Random(seed.Next());

             for (int i = ; i < ClassCommon.Total; ++i)

             {

                 ClassCommon.F[i].Addend1 = Addend.Next(ClassCommon.Scope);

                 ClassCommon.F[i].Addend2 = Addend.Next(ClassCommon.Scope - ClassCommon.F[i].Addend1);

             }

         }

         private void Put_Random_Addend()

         {

             textBox1.Text = Convert.ToString(ClassCommon.F[ClassCommon.Count].Addend1);

             textBox2.Text = Convert.ToString(ClassCommon.F[ClassCommon.Count].Addend2);

             ++ClassCommon.Count;

             textBox3.Focus();

         }

         private void Form2_Load(object sender, EventArgs e)

         {

             progressBar1.Minimum = ;

             progressBar1.Maximum = ClassCommon.Total*;

             progressBar1.Value = ;

             for (int i = ; i < ClassCommon.Total; ++i)

                 ClassCommon.F[i].Ans = -;

             ClassCommon.Count = ;

             Get_Random_Addend();

             Put_Random_Addend();

             progressBar1.Value += ;

             if (ClassCommon.F[ClassCommon.Count - ].Ans != -)

                 textBox3.Text = Convert.ToString(ClassCommon.F[ClassCommon.Count - ].Ans);

             else

                 textBox3.Text = "";

             textBox3.Focus();

         }

         private void button3_Click(object sender, EventArgs e)

         {

             this.Close();

             f1.Show();

         }

         private void button4_Click(object sender, EventArgs e)

         {

             this.Close();

             f1.Close();

         }

         private void Form2_Activated(object sender, EventArgs e)

         {

             textBox3.Focus();

             button1.Enabled = false;

             this.Text = "第" + Convert.ToString(ClassCommon.Count) + "题";

             if (ClassCommon.Count == ClassCommon.Total)

                 button2.Text = "完成";

             else

                 button2.Text = "下一题";

         }

         private void button2_Click(object sender, EventArgs e)

         {

             if (textBox3.Text != "" && textBox3.TextLength < )

             {

                 if (ClassCommon.Count == ClassCommon.Total)

                 {

                     ClassCommon.F[ClassCommon.Count - ].Ans = Convert.ToInt32(textBox3.Text);

                     Result f4 = new Result(this.f1);

                     this.Close();

                     f4.Show();

                 }

                 else

                 {

                     button1.Enabled = true;

                     ClassCommon.F[ClassCommon.Count - ].Ans = Convert.ToInt32(textBox3.Text);

                     Put_Random_Addend();

                     progressBar1.Value += ;

                 }

             }

             if (ClassCommon.F[ClassCommon.Count - ].Ans != -)

                 textBox3.Text = Convert.ToString(ClassCommon.F[ClassCommon.Count - ].Ans);

             else

                 textBox3.Text = "";

             this.Text = "第" + Convert.ToString(ClassCommon.Count) + "题";

             if (ClassCommon.Count == ClassCommon.Total)

                 button2.Text = "完成";

             else

                 button2.Text = "下一题";

             textBox3.Focus();

         }

         private void button1_Click(object sender, EventArgs e)

         {

             ClassCommon.Count -= ;

             if (ClassCommon.Count == )

                 button1.Enabled = false;

             Put_Random_Addend();

             progressBar1.Value -= ;

             if (ClassCommon.F[ClassCommon.Count - ].Ans != -)

                 textBox3.Text = Convert.ToString(ClassCommon.F[ClassCommon.Count - ].Ans);

             else

                 textBox3.Text = "";

             if (ClassCommon.Count == ClassCommon.Total)

                 button2.Text = "完成";

             else

                 button2.Text = "下一题";

             this.Text = "第" + Convert.ToString(ClassCommon.Count) + "题";

             textBox3.Focus();

         }

     }

 }

Error.cs

 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;

 namespace AdditionGame

 {

     public partial class Error : Form

     {

         Form f1 = new Setting();

         public Error(Form firstForm)

         {

             InitializeComponent();

             f1 = firstForm;

         }

         private void Error_Load(object sender, EventArgs e)

         {

             button4.Focus();

         }

         private void button4_Click(object sender, EventArgs e)

         {

             this.Close();

             f1.Show();

         }

         private void button3_Click(object sender, EventArgs e)

         {

             this.Close();

             f1.Close();

         }

     }

 }

Result.cs

 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;

 namespace AdditionGame

 {

     public partial class Result : Form

     {

         Form f1 = new Setting();

         public Result(Form firstForm)

         {

             InitializeComponent();

             this.f1 = firstForm;

         }

         private void button3_Click(object sender, EventArgs e)

         {

             this.Close();

             f1.Close();

         }

         private void Result_Load(object sender, EventArgs e)

         {

             ClassCommon.Right = ;

             ClassCommon.Wrong = ;

             ClassCommon.Rate = 0.0;

             for (int i = ; i < ClassCommon.Total; ++i)

                 if (ClassCommon.F[i].Addend1 + ClassCommon.F[i].Addend2 == ClassCommon.F[i].Ans)

                     ++ClassCommon.Right;

                 else

                     ++ClassCommon.Wrong;

             ClassCommon.Rate = Convert.ToDouble(ClassCommon.Right) / Convert.ToDouble(ClassCommon.Total) * 100.0;

             string Str3 = String.Format("{0:F}", ClassCommon.Rate);

             listBox1.Items.Add("此次练习一共有 " + Convert.ToString(ClassCommon.Total) + " 题，答对 " + Convert.ToString(ClassCommon.Right) + " 题，答错 " + Convert.ToString(ClassCommon.Wrong) + " 题，正确率为 " + Str3 + " %");

             if (ClassCommon.Right == ClassCommon.Total)

                 listBox1.Items.Add("干得漂亮，你全做对了！优秀是一种习惯，希望你继续保持。");

             else

                 if (ClassCommon.Rate >= 80.0)

                     listBox1.Items.Add("你真棒，快看看哪些题目做错了！期待你更上一层楼。");

             else

                 if (ClassCommon.Rate >= 60.0)

                     listBox1.Items.Add("做得一般，还需要付出更大的努力才行哦！");

             else

                 listBox1.Items.Add("做得不好！你付出了时间与精力，为什么不付出感情呢？");

             if (ClassCommon.Right != ClassCommon.Total)

             {

                 listBox1.Items.Add("以下是你做错的题目以及正确答案：");

                 for (int i = ; i < ClassCommon.Total; ++i)

                     if (ClassCommon.F[i].Addend1 + ClassCommon.F[i].Addend2 != ClassCommon.F[i].Ans)

                         listBox1.Items.Add("第 " + Convert.ToString(i + ) + " 题，" + Convert.ToString(ClassCommon.F[i].Addend1) + " + " + Convert.ToString(ClassCommon.F[i].Addend2) + " = " + Convert.ToString(ClassCommon.F[i].Ans) + "✘→" + Convert.ToString(ClassCommon.F[i].Addend1 + ClassCommon.F[i].Addend2) + "✔");

             }

             button4.Focus();

         }

         private void button4_Click(object sender, EventArgs e)

         {

             this.Close();

             f1.Show();

         }

         private void Result_Activated(object sender, EventArgs e)

         {

             button4.Focus();

         }

         private void listBox1_SelectedIndexChanged(object sender, EventArgs e)

         {

         }

     }

 }

About.cs

 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;

 namespace AdditionGame

 {

     public partial class About : Form

     {

         Form f1 = new Setting();

         public About(Setting firstForm)

         {

             InitializeComponent();

             f1 = firstForm;

         }

         private void About_Load(object sender, EventArgs e)

         {

             button4.Focus();

         }

         private void button3_Click(object sender, EventArgs e)

         {

             f1.Close();

             this.Close();

         }

         private void button4_Click(object sender, EventArgs e)

         {

             this.Close();

             f1.Show();

         }

         private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)

         {

             System.Diagnostics.Process.Start("http://www.cnblogs.com/haipzm/");

         }

         private void linkLabel2_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)

         {

             System.Diagnostics.Process.Start("haipzm@gmail.com");

         }

     }

 }

ClassCommon.cs

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 namespace AdditionGame

 {

     public struct Data

     {

         public int Addend1;

         public int Addend2;

         public int Ans;

     }

     class ClassCommon

     {

         public static int MaxTotal = ;

         public static Data[] F = new Data[MaxTotal];

         public static int Count = ;

         public static double Rate = 0.0;

         public static int Right = ;

         public static int Wrong = ;

         public static int Total = ;

         public static int Scope = ;

     }

 }

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