using System; class Method { public static void getarea(Double r) //求圆的面积 { Console.WriteLine(r*r*3.14); } public static void getarea(Double a,Double b) //求矩形的面积 { Console.WriteLine(a*b); } public static void getarea(Double a,Double b,Double c) //求三角形的面积 { Double p=(a+b+c)/2; Double s=Math.Sqrt(p*(p-a)*(p-b)*(p-c)); Console.WriteLine(s); } } class text { public static void Main() {
using System; using System.Collections.Generic; using System.Text;namespace OverLoad { class CalcMethod { public static void CalcArea(double r) { Console.WriteLine("圆的面积为:{0}",r); } public static void CalcArea(double a, double b) { Console.WriteLine("矩形面积:{0}",a*b); } public static void CalcArea(double a, double b, double c) { double p = (a+b+c)/2; double s = Math.Sqrt(p*(p-a)*(p-b)*(p-c)); Console.WriteLine("三角形的面积为:{0}", s); }
} class Program { static void Main(string[] args) { CalcMethod.CalcArea(4); CalcMethod.CalcArea(4, 7); CalcMethod.CalcArea(3, 4, 5); Console.ReadKey(); } } }LZ结贴拿分!
这是我的代码: using System; using System.Collections.Generic; using System.Text;namespace Figure { class FigureArea { public static void Circle(double radius) { Console.WriteLine("圆的面积是:{0}", 3.14159 * radius * radius); } public static void Rectangle(double length, double width) { Console.WriteLine("矩形面积是:{0}", length * width); } public static void Triangle(double a, double b, double c) { double s; s = (a + b + c) / 2; if (a + b <= c || b + c <= a || a + c <= b) { Console.WriteLine("该三角形无意义!"); } else Console.WriteLine("三角形面积是:{0}", Math.Sqrt(s * (s - a) * (s - b) * (s - c))); } } class Program { static void Main(string[] args) { double r; double l, w; double x, y, z; FigureArea f = new FigureArea(); Console.Write("请输入圆的半径:"); r = double.Parse(Console.ReadLine()); FigureArea.Circle(r);
Console.Write("请输入矩形的长和宽:"); l = double.Parse(Console.ReadLine()); w = double.Parse(Console.ReadLine()); FigureArea.Rectangle(l, w); Console.Write("请输入三角形的三边长:"); x = double.Parse(Console.ReadLine()); y = double.Parse(Console.ReadLine()); z = double.Parse(Console.ReadLine()); FigureArea.Triangle(x, y, z); } } }谢谢大家的指点,其实我是想问"构造三个方法重载"该如何做,现在终于明白了!
我来帮你写
class Method
{
public static void getarea(Double r) //求圆的面积
{
Console.WriteLine(r*r*3.14);
}
public static void getarea(Double a,Double b) //求矩形的面积
{
Console.WriteLine(a*b);
}
public static void getarea(Double a,Double b,Double c) //求三角形的面积
{
Double p=(a+b+c)/2;
Double s=Math.Sqrt(p*(p-a)*(p-b)*(p-c));
Console.WriteLine(s);
}
}
class text
{
public static void Main()
{
Method.getarea(4);
Method.getarea(4,4);
Method.getarea(4,4,4);
}
}给你个简单的思路 最好自己再想想看有没有其他方法 学程序要多动手
希望能帮到你
using System.Collections.Generic;
using System.Text;namespace MyWinForm
{
class plan
{
/// <summary>
/// 此方法用来计算圆的面积
/// </summary>
/// <param name="r">半径</param>
/// <returns>返回面积</returns>
public static double Circle(double r)
{
return Math.PI * r * r;
}
/// <summary>
/// 此方法用来计算矩形面积
/// </summary>
/// <param name="x">长</param>
/// <param name="y">宽</param>
/// <returns>返回面积</returns>
public static double Rectangle(double x, double y)
{
return x * y;
}
/// <summary>
/// 此方法用来计算三角形面积
/// </summary>
/// <param name="a">边长a</param>
/// <param name="b">边长b</param>
/// <param name="c">边长c</param>
/// <returns>返回面积</returns>
public static double Triangle(double a, double b, double c)
{
double l;
l = 0.5 * (a + b + c);
return Math.Sqrt(l*(l-a)*(l-b)*(l-c));
}
/// <summary>
/// 此方法用来计算梯形面积
/// </summary>
/// <param name="e">上底</param>
/// <param name="f">下底</param>
/// <param name="h">高</param>
/// <returns>返回面积</returns>
public static double Ladder(double e, double f, double h)
{
return ((e + f) * h) * 0.5;
}
/// <summary>
/// 此方法用来计算平行四边形的面积
/// </summary>
/// <param name="l">底边</param>
/// <param name="h">高</param>
/// <returns>面积</returns>
public static double Parallelogram(double l, double h)
{
return l * h;
}
/// <summary>
/// 此方法用来计算正多边形面积
/// </summary>
/// <param name="n">边数</param>
/// <param name="l">边长</param>
/// <returns>面积</returns>
public static double Polygon(double n ,double l)
{
return((0.25*n*l*l)/(Math .Tan (Math .PI /n)));
}
/// <summary>
/// 此方法用来计算扇形面积
/// </summary>
/// <param name="l">扇形半径</param>
/// <param name="Q">扇形圆心角</param>
/// <returns>面积</returns>
public static double Fan(double l, double Q)
{
return (Math .PI *l*l)*(Q/360);
}
}
}
using System;
using System.Collections.Generic;
using System.Text;namespace OverLoad
{
class CalcMethod
{
public static void CalcArea(double r)
{
Console.WriteLine("圆的面积为:{0}",r);
} public static void CalcArea(double a, double b)
{
Console.WriteLine("矩形面积:{0}",a*b);
} public static void CalcArea(double a, double b, double c)
{
double p = (a+b+c)/2;
double s = Math.Sqrt(p*(p-a)*(p-b)*(p-c));
Console.WriteLine("三角形的面积为:{0}", s);
}
}
class Program
{
static void Main(string[] args)
{
CalcMethod.CalcArea(4);
CalcMethod.CalcArea(4, 7);
CalcMethod.CalcArea(3, 4, 5);
Console.ReadKey();
}
}
}LZ结贴拿分!
using System;
using System.Collections.Generic;
using System.Text;namespace Figure
{
class FigureArea
{
public static void Circle(double radius)
{
Console.WriteLine("圆的面积是:{0}", 3.14159 * radius * radius);
} public static void Rectangle(double length, double width)
{
Console.WriteLine("矩形面积是:{0}", length * width);
} public static void Triangle(double a, double b, double c)
{
double s;
s = (a + b + c) / 2;
if (a + b <= c || b + c <= a || a + c <= b)
{
Console.WriteLine("该三角形无意义!");
}
else
Console.WriteLine("三角形面积是:{0}", Math.Sqrt(s * (s - a) * (s - b) * (s - c)));
}
}
class Program
{
static void Main(string[] args)
{
double r;
double l, w;
double x, y, z;
FigureArea f = new FigureArea(); Console.Write("请输入圆的半径:");
r = double.Parse(Console.ReadLine());
FigureArea.Circle(r);
Console.Write("请输入矩形的长和宽:");
l = double.Parse(Console.ReadLine());
w = double.Parse(Console.ReadLine());
FigureArea.Rectangle(l, w); Console.Write("请输入三角形的三边长:");
x = double.Parse(Console.ReadLine());
y = double.Parse(Console.ReadLine());
z = double.Parse(Console.ReadLine());
FigureArea.Triangle(x, y, z);
}
}
}谢谢大家的指点,其实我是想问"构造三个方法重载"该如何做,现在终于明白了!