策略实现代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace 简易运算
{
public interface ODD
{
int members(int a, int b);
}
class Class2 : ODD
{
public int members(int a, int b)
{
return a + b;
}
}
class sub : ODD
{
public int members(int a, int b)
{
return a - b;
}
}
class Mul : ODD
{
public int members(int a, int b)
{
return a * b;
}
}
class Div : ODD
{
public int members(int a, int b)
{
return a / b;
}
}
class suanfa
{
public int result = 0;
public int fa = 0;
public int fb = 0;
public void math(string TR)
{
if (TR == "+")
{
Class2 being= new Class2();
result = being.members(fa, fb);
}
if (TR == "-")
{
sub Jian = new sub();
result= Jian.members(fa, fb);
}
if (TR == "*")
{
Mul CH = new Mul();
result = CH.members(fa, fb);
}
if (TR == "/")
{
Div CF = new Div();
result = CF.members(fa, fb);
}
}
}
}
Form代码：
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;
using System.IO;
namespace 简易运算
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
string path = "E:/";
public static int count = 0;
public static int right = 0;
public static int sum;
public int m = 0;
public int n = 0;
private void Form1_Load(object sender, EventArgs e)
{
Class1 s = new Class1();
s.text1();
}
private void button1_Click(object sender, EventArgs e)
{
StreamWriter l1 = File.AppendText("1.txt");
l1.WriteLine(text1.Text);
l1.Close();
StreamWriter l2 = File.AppendText("2.txt");
l2.WriteLine(textBox2.Text);
l2.Close();
StreamWriter l3 = File.AppendText("3.txt");
l3.WriteLine(text2.Text);
l3.Close();
richTextBox1.Text += text1.Text + textBox2.Text +text2.Text+ "
";
n++;
text1.Text = "";
text2.Text = "";
textBox2.Text = "";
savet.Enabled = true;
opent.Enabled = true;
text1.Focus();
}
private void savet_Click(object sender, EventArgs e)
{
SaveFileDialog TxtSaveDialog = new SaveFileDialog();
TxtSaveDialog.Filter = "RTF文件(*.RTF)|*.RTF";
if (File.Exists(path))
{
this.richTextBox1.SaveFile(path, RichTextBoxStreamType.RichText);
MessageBox.Show("保存成功", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
this.richTextBox1.Clear();
savet.Enabled = false;
}
else
{
if (TxtSaveDialog.ShowDialog() == DialogResult.OK)
{
this.richTextBox1.SaveFile(TxtSaveDialog.FileName, RichTextBoxStreamType.RichText);
MessageBox.Show("保存成功", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
this.richTextBox1.Clear();
savet.Enabled = false;
}
}
}
private void opent_Click(object sender, EventArgs e)
{
OpenFileDialog TxTOpenDialog = new OpenFileDialog();
TxTOpenDialog.Filter = "RTF文件(*.RTF)|*.RTF";
if (TxTOpenDialog.ShowDialog() == DialogResult.OK)
{
path = TxTOpenDialog.FileName;
this.richTextBox1.LoadFile(TxTOpenDialog.FileName, RichTextBoxStreamType.RichText);
savet.Enabled = false;
opent.Enabled = false;
MessageBox.Show("打开成功", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
}
private void button2_Click(object sender, EventArgs e)
{
int a = Convert.ToInt32(jishi.Text);
jishi.Text = a.ToString();
timer1.Enabled = true;
timer1.Interval = 1000;
string[] l1 = new string[100];
l1 = File.ReadAllLines("1.txt");
string[] l2 = new string[100];
l2 = File.ReadAllLines("2.txt");
string[] l3 = new string[100];
l3 = File.ReadAllLines("3.txt");
Box1.Text = l1[0];
Box4.Text = l2[0];
Box2.Text = l3[0];
}
private void Box3_KeyDown(object sender, KeyEventArgs e)
{
//string s = Box4.Text;
//Pack operast = new Pack();
//operast.OP = int.Parse(Box1.Text);
//operast.Pt = int.Parse(Box2.Text);
//operast.Oper = Box4.Text;
suanfa fan = new suanfa();
string str = textBox2.Text;
fan.fa = int.Parse(Box1.Text);
fan.fb = int.Parse(Box2.Text);
string st = Box4.Text;
fan.math(st);
int sum = fan.result;
//switch (s)
//{
// case "+":
// sum = int.Parse(Box1.Text) + int.Parse(Box2.Text);
// break;
// case "-":
// sum = int.Parse(Box1.Text) - int.Parse(Box2.Text);
// break;
// case "*":
// sum = int.Parse(Box1.Text) * int.Parse(Box2.Text);
// break;
// case "/":
// sum = int.Parse(Box1.Text) / int.Parse(Box2.Text);
// break;
// default:
// break;
//}
if (e.KeyCode == Keys.Enter)
{
if (sum.ToString() == Box3.Text)
{
MessageBox.Show("回答正确哦！");
count++;
right++;
}
else
{
MessageBox.Show("回答错误哦！");
count++;
}
m++;
if (m < n)
{
Box3.Clear();
string[] ll = new string[100];
ll = File.ReadAllLines("1.txt");
Box1.Text = ll[m];
string[] l2 = new string[100];
l2 = File.ReadAllLines("2.txt");
Box4.Text = l2[m];
string[] l3 = new string[100];
l3 = File.ReadAllLines("3.txt");
Box2.Text = l3[m];
}
else
{
jishi.Enabled = false;
Form2 frm = new Form2();
frm.ShowDialog();
}
}
}
private void timer1_Tick(object sender, EventArgs e)
{
//t = t + 1;
//jishi.Text = t.ToString();
if(Convert.ToInt32(jishi.Text)<=0)
{
timer1.Enabled = false;
MessageBox.Show("时间到");
}
int a = Convert.ToInt32(jishi.Text);
a = a - 1;
jishi.Text = a.ToString();
}
}
}
测试截图：
总结：运用策越模式 感觉到可使算法具有灵活性，实现一个功能 原来有这么多的途径、、