结队编程第三次作业

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using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Simple_arithmetic //简易四则运算
{

class Program
{
public static void Ni()
{

Console.WriteLine("请输入您想做的运算: ");

Console.WriteLine("输入 【+】 表示加法");

Console.WriteLine("输入 【-】 表示减法");

Console.WriteLine("输入 【*】 表示乘法");

Console.WriteLine("输入 【/】 表示除法");

Console.WriteLine("输入【 -1】表示结束");

Console.WriteLine("====================");

string opt = Console.ReadLine();

switch (opt) //使用switch语句
{

case "+":

Opp.Add();

break;

case "-":

Opp.Sub();

break;

case "*":

Opp.Mul();

break;

case "/":

Opp.Div();

break;

}

Console.ReadLine();

}

static void Main(string[] args)
{



//首先声明
Ni();

}

}

public delegate double Num(double x, double y);//定义委托
public class SimpleMath
{
public static double Add(double x, double y)
{ return x + y; }
public static double Sub(double x, double y)
{ return x - y; }
public static double sub(double x, double y)
{ return y - x; }
public static double Mul(double x, double y)
{ return x * y; }
public static double Div(double x, double y)
{ return x / y; }
public static double div(double x, double y)
{ return y / x; }
}

public class Opp
{
public static int i = 0;

public static int fault = 0;

public static int right = 0;

public static void Add()//加法，实现加法功能
{

double sum, op;

Random p = new Random();

double x = p.Next(0, 10);

double y = p.Next(0, 10);

sum = x + y;

Console.WriteLine("{0}+{1}=", x, y);

Console.WriteLine("请输入结果：");

op = double.Parse(Console.ReadLine());

Num um = new Num(SimpleMath.Add);

Console.WriteLine("正确结果是：");

Console.WriteLine("{0}+{1}={2}", x, y, um(x, y));

if (sum == op)
{

Console.WriteLine("您的结果正确！");
i++;
fault++;
right++;

Add();

}

else if (op == -1)
{

end();
Program.Ni();

}

else
{

Console.WriteLine("您的结果错误！");
i++;
fault++;

Add();

}

}



public static void end()
{

Console.WriteLine("您已退出计算！您共做{0}道题，答对{1}道，答错{2}道", i, fault, right);

}

public static void Sub()//减法，实现减法功能
{

double jan, op;

Random p = new Random();

double x = p.Next(0, 10);

double y = p.Next(0, 10);
if (x > y)
{
jan = x - y;

Console.WriteLine("{0}-{1}=", x, y);

Console.WriteLine("请输入结果：");

op = double.Parse(Console.ReadLine());

Num um = new Num(SimpleMath.Sub);

Console.WriteLine("正确结果是：");

Console.WriteLine("{0}-{1}={2}", x, y, um(x, y));

if (jan == op)
{

Console.WriteLine("您的结果正确！");
i++;
fault++;

right++;

Add();

}

else if (op == -1)
{

end();
Program.Ni();

}

else
{

Console.WriteLine("您的结果错误！");
i++;
fault++;

Sub();

}

}
else if (x < y)
{
jan = y - x;

Console.WriteLine("{0}-{1}=", y, x);

Console.WriteLine("请输入结果：");

op = double.Parse(Console.ReadLine());

Num um = new Num(SimpleMath.sub);

Console.WriteLine("正确结果是：");

Console.WriteLine("{0}-{1}={2}", y, x, um(y, x));

if (jan == op)
{

Console.WriteLine("您的结果正确！");
i++;
fault++;

right++;

Add();

}

else if (op == -1)
{

end();
Program.Ni();

}

else
{

Console.WriteLine("您的结果错误！");
i++;
fault++;

Sub();

}

}

}





public static void Mul()//乘法，实现乘法功能
{

double cen, op;

Random p = new Random();

double x = p.Next(0, 10);

double y = p.Next(0, 10);

cen = x * y;

Console.WriteLine("{0}*{1}=", x, y);

Console.WriteLine("请输入结果：");

op = double.Parse(Console.ReadLine());

Num um = new Num(SimpleMath.Mul);

Console.WriteLine("正确结果是：");

Console.WriteLine("{0}*{1}={2}", x, y, um(x, y));

if (cen == op)
{

Console.WriteLine("您的结果正确！");

fault++;

right++;

Add();

}

else if (op == -1)
{

end();
Program.Ni();
}

else
{

Console.WriteLine("您的结果错误！");

fault++;

Mul();

}

}

public static void Div()//除法，实现除法功能
{
double chu, op;
Random p = new Random();
double x = p.Next(0, 10);
double y = p.Next(0, 10);
if (y != 0)
{
chu = x / y;
Console.WriteLine("{0}/{1}=", x, y);
Console.WriteLine("请输入结果：");
op = double.Parse(Console.ReadLine());
Num um = new Num(SimpleMath.Div);
Console.WriteLine("正确结果是：");
Console.WriteLine("{0}/{1}={2}", x, y, um(x, y));
if (chu == op)
{
Console.WriteLine("您的结果正确！");
fault++;
right++;
Add();
}
else if (op == -1)
{
end();
Program.Ni();
}
else
{
Console.WriteLine("您的结果错误！");
fault++;
Div();
}
}
else if(y==0)
{
chu = y / x;
Console.WriteLine("{0}/{1}=", y, x);
Console.WriteLine("请输入结果：");
op = double.Parse(Console.ReadLine());
Num um = new Num(SimpleMath.div);
Console.WriteLine("正确结果是：");
Console.WriteLine("{0}/{1}={2}", y, x, um(x, y));
if (chu == op)
{
Console.WriteLine("您的结果正确！");
fault++;
right++;
Add();
}
else if (op == -1)
{
end();
Program.Ni();
}
else
{
Console.WriteLine("您的结果错误！");
fault++;
Div();
}
}

}}}

感想：感觉通过这次结对编程让我感觉到了合作的重要性，比以往独自一人独自编程要有趣轻松的多，更重要的是结队编程学到的更多收获更多！

结队编程第三次作业

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原文地址：http://www.cnblogs.com/1677186200com/p/4890239.html