111

15.1/15.1.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>_15._1</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

15.1/15.1.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "15.1", "15.1.csproj", "{816086E8-93CF-41C4-8DC4-EE4B44FE918B}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{816086E8-93CF-41C4-8DC4-EE4B44FE918B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{816086E8-93CF-41C4-8DC4-EE4B44FE918B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{816086E8-93CF-41C4-8DC4-EE4B44FE918B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{816086E8-93CF-41C4-8DC4-EE4B44FE918B}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {F6856EF0-4074-451B-9ED7-D1F4FC4E61BD}
+	EndGlobalSection
+EndGlobal

15.1/Program.cs

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+using System;
+using System.Drawing;
+namespace _15._1
+{
+    class MathTriangle
+    {
+        private double sideA;
+        private double sideB;
+        private double sideC;
+        public MathTriangle(double a, double b, double c)
+        {
+            sideA = Math.Abs(a);
+            sideB = Math.Abs(b);
+            sideC = Math.Abs(c);
+        }
+        public double GetArea()
+        {
+            double s = (sideA + sideB + sideC) / 2;
+            return Math.Sqrt(s * (s - sideA) * (s - sideB) * (s - sideC));
+        }
+        public double GetPerimeter()
+        {
+            return sideA + sideB + sideC;
+        }
+        public double GetHeight()
+        {
+            double area = GetArea();
+            return (2 * area) / sideA;
+        }
+        public double GetMaxSide()
+        {
+            return Math.Max(sideA, Math.Max(sideB, sideC));
+        }
+        public double GetMinSide()
+        {
+            return Math.Min(sideA, Math.Min(sideB, sideC));
+        }
+        private double GetPartSideA()
+        {
+            return Math.Sqrt((Math.Pow(sideB, 2.0) - Math.Pow(GetHeight(), 2.0)));
+
+        }
+        static void Main()
+        {
+            MathTriangle triangle = new MathTriangle(16.0, 10.0, 8.0);
+            Console.WriteLine("三角形三边长分别为: {0}, {1}, {2}", triangle.sideA, triangle.sideB, triangle.sideC);
+            Console.WriteLine("三角形的面积为: {0:#.00}", triangle.GetArea());
+            Console.WriteLine("三角形的周长为: {0}", triangle.GetPerimeter());
+            Console.WriteLine("三角形的A边高为: {0:#.00}", triangle.GetHeight());
+            Console.WriteLine("三角形的最大边为: {0}", triangle.GetMaxSide());
+            Console.WriteLine("三角形的最小边为: {0}", triangle.GetMinSide());
+        }
+    }
+}