1、c#程序设计实验报告实验报告二姓 名专业软件工程课程名称C#程序设计一、实验名称：实验2二、实验目的：掌握使用命令行开发简单的C#应用程序掌握使用Visual Studio编写控制台应用程序掌握Visual Studio环境下程序的跟踪调试了解Visual Studio在线帮助的使用掌握应用程序命令行参数的使用三、实验内容及要求利用ADO.NET完成数据的增、删、改、查1.1 鼠标、窗口、菜单的操作1.2 用户账户的管理1.3 桌面图标的排列、设置桌面背景和屏幕保护程序1.4 设置任务栏、语言栏1.5 选择输入法、在记事本”文件中输入各种符号2.1了解资源管理器的使用”2.2 设置文件夹选项、
2、查找文件或文件夹2.3 文件/文件夹操作2.4 使用回收站具体要求请见大学计算机应用基础学习指导P37P48四、实验材料、工具、或软件Windows *P Professional SP3Visual Studio 2005五、实验步骤、结果（或记录）实验二:程序流程控制2-1输入半径，求对应的圆的周长、面积、对应球体的体积。运行结果：实验代码：using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace _2_1 class Program static void Mai
3、n(string args) const double PI = 3.14159; double r, perimeter, area, volume; Console.Write (请输入半径:); String s = Console.ReadLine(); r = double.Parse(s); Console.WriteLine(圆的半径为=0,r); perimeter = 2 * PI * r; area = PI * r * r; volume = 4 / 3 * PI * Math.Pow(r, 3); Console.WriteLine(圆的周长为=0，面积为=1,peri
4、meter ,area ); Console.WriteLine(球体的体积=0,volume ); Console.ReadLine(); 2-2求三角形的周长和面积运行结果：实验代码：using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace _2_2 class Program static void Main(string args) double a, b, c, p, h, area; Console.Write(请输入三角形的边a:); string s =
5、 Console.ReadLine(); a = double.Parse(s); Console .Write (请输入三角形的边b:); s = Console.ReadLine(); b = double.Parse(s); Console.Write(请输入三角形的边c:); s = Console.ReadLine(); c = double.Parse(s); if (a 0 & b 0 & c 0 & a + b c & a + c b & b + c a) Console.WriteLine(三角形三边分别为：a=0,b=1,c=2,a,b,c); p = a + b + c;
6、 h = p / 2; area = Math.Sqrt(h * (h - a) * (h - b) * (h - c); Console.WriteLine(三角形的周长=0,面积为=1,p,area); else Console.WriteLine(无法构成三角形！); Console.ReadKey(); 2-3分段函数的实现运行结果实验代码：using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace _2_3_2 class Program static void
7、 Main(string args) double *, y; Console .Write (请输入*：); string s = Console.ReadLine(); * = double.Parse(s); y = (* * * - 3 * *) / (* + 1) + 2 * Math.PI + Math.Sin(*); if(*=0) y = (* * * - 3 * *) / (* + 1) + 2 * Math.PI + Math.Sin(*); if(*=0) y = (* * * - 3 * *) / (* + 1) + 2 * Math.PI + Math.Sin(*);
8、 else y=Math.Log(-5*)+6*Math .Sqrt (Math .Abs (*)+Math .Pow (Math .E,4)-Math .Pow (*+1,3); Console .WriteLine (方法三:*=0,y=1,*,y); y=(*=0)(* * * - 3 * *) / (* + 1) + 2 * Math.PI + Math.Sin(*):Math.Log(-5*)+6*Math .Sqrt (Math .Abs (*)+Math .Pow (Math .E,4)-Math .Pow (*+1,3); Console .WriteLine (方法四:*=0
9、,y=1,*,y); Console .ReadKey (); 2-4三个数比较大小运行结果：实验代码：using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace _2_4 class Program static void Main(string args) int a, b, c, a1, b1, c1, t, Nma*, Nmin, Nmid; Random rMun = new Random(); a = rMun.Ne*t(101); b = rMun.Ne*t
10、(101); c= rMun.Ne*t(101); Console.WriteLine(原始值：a=0,b=1,c=2,a,b,c); a1 = a; b1 = b; c1 = c; if (a b) t = a; a = b; b = t; if (a c) t = a; a = c; c = t; if (b c) t = b; b = c; c = t; Console.WriteLine(方法一)升序值：a=0,b=1,c=2),a,b,c); a = a1; b = b1; c = c1; Nma* =Math .Ma* (Math .Ma* (a,b),c); Nmin = Mat
11、h.Min(Math.Min(a, b), c); Nmid = a + b + c - Nma* - Nmin; a = Nmin; b = Nmid; c = Nma*; Console.WriteLine(方法二)升序值：a=0,b=1,c=2,a,b,c); Console.ReadKey(); 2-5求解一元二次方程运行结果：实验代码：using System;using System.Collections.Generic;using System.Te*t;namespace Console2_5 class Program static void Main(string arg
12、s) double a, b, c, delta, *1, *2, realPart, imagePart; Console.Write(请输入系数a:); String s = Console.ReadLine(); a = double.Parse(s); Console.Write(请输入系数b:); s = Console.ReadLine(); b = double.Parse(s); Console.Write(请输入系数c:); s = Console.ReadLine(); c = double.Parse(s); if(a=0) if(b=0) Console.WriteLi
13、ne(此方程无解！); else Console.WriteLine(此方程的解为：0,-c/b); else delta=b*b-4*a*c; if(delta0) *1=(-b+Math.Sqrt(delta)/(2*a); *2=(-b-Math.Sqrt(delta)/(2*a); Console.WriteLine(此方程有两个不等实根：0，1,*1,*2); else if(delta =0)Console.WriteLine(此方程有两个相等实根：0,-b/(2*a); else realPart=-b/(2*a); imagePart=Math.Sqrt(-delta)/(2*
14、a); Console.WriteLine(此方程有两个不等实根：0+1i和0-1i,realPart,imagePart); Console.ReadKey(); 2-6switch语句实现多重分支运行结果：实验代码：using System;using System.Collections.Generic;using System.Te*t;namespace ConsoleApplication1 class Program static void Main(string args) int i; Console.Write(输入一个数字（17）：); String s = Consol
15、e.ReadLine(); i = int.Parse(s); switch(i) case 1: Console.WriteLine(对应的星期为：星期一); break; case 2: Console.WriteLine(对应的星期为：星期二); break; case 3: Console.WriteLine(对应的星期为：星期三); break; case 4: Console.WriteLine(对应的星期为：星期四); break; case 5: Console.WriteLine(对应的星期为：星期五); break; case 6: Console.WriteLine(对应
16、的星期为：星期六); break; case 7: Console.WriteLine(对应的星期为：星期日); break; default: Console.WriteLine(输入错误！); break ; Console.ReadKey(); 2-7分别使用if语句和switch语句实现多分支结构方法一:运行结果（if语句）using System;using System.Collections.Generic;using System.Te*t;namespace Console2_7 class Program static void Main(string args) int
17、c; double f = 0; Console.Write(请输入有固定工资收入的党员的月工资：); int salary = int.Parse(Console.ReadLine(); if (salary 1500) c = 15; else c = (salary - 1) / 100; switch (c) case 0: case 1: case 2: case 3: f = 0.5 / 100 * salary; break; case 6: case 7: f = 1.5 / 100 * salary; break; case 8: case 9: case 10: case
18、11: case 12: case 13: case 14: f = 2.0 / 100 * salary; break; case 15: f = 3.0 / 100 * salary; break; Console.WriteLine(月工资=0,交纳党费=1, salary, f); Console.ReadKey(); 法二运行结果：代码：（if语句）using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace _2_7_2 class Program static
19、 void Main(string args) int c; double f = 0; Console.Write(请输入有固定收入的党员的月工资：); int salary = int.Parse(Console.ReadLine(); if (salary 0 & salary 400 & salary 600 & salary 800 & salary 1500) f = 3.0 / 100 * salary; else Console.WriteLine(月工资输入有误！); Console.WriteLine(月工资=0，交纳党费=1, salary, f); Console.Re
20、adKey(); 实验三：3-1运行结果：实验代码：using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace _3_1 class Program static void Main(string args) int i, n, fac = 1; string s; n = -1; while (n 0) Console.Write(请输入非负整数n:); s = Console.ReadLine(); n = int.Parse(s); /方法一：for循环 for (
21、i = 1; i = n; i+) fac *= i; Console.WriteLine( For循环：0！=1, n, fac); /方法二：while语句循环 i = 1; fac = 1; while (i = n) fac *= i+; Console.WriteLine( while循环：0！=1, n, fac); /方法三：do.while语句循环 i = 1; fac = 1; do fac *= i; i+; while (i = n); Console.WriteLine( do.while循环：0！=1, n, fac); Console.ReadKey(); 3-2运
22、行结果：实验代码：using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace _3_2 class Program static void Main(string args) int f1 = 1, f2 = 1, f3, num = 2; Console.Write(0,5t0,5t, f1, f2); f3 = f1 + f2; while (f3 = 10000) Console.Write(0,5t, f3); num+; if (num % 5 = 0) Con
23、sole.WriteLine(); f1 = f2; f2 = f3; f3 = f1 + f2; Console.ReadKey(); 3-3、鸡兔同笼问题运行结果：代码：using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace _3_3 class Program static void Main(string args) int c, r; Console.Write(请输入总头数：); string s = Console.ReadLine(); int h =
24、 int.Parse(s); int f = 1; while (f % 2 != 0) Console.Write(请输入总脚数（必须是偶数）：); s = Console.ReadLine(); f = int.Parse(s); /方法一：利用循环 bool solution = false; for (c = 0; c =0&c=0) Console .WriteLine (方法二：鸡：0只，兔：1只,c ,r); solution =true ; if (!solution) Console.WriteLine(方法二：无解，请重新运行测试！); Console .ReadKey (
25、); 3-4利用级数和求PI运行结果:实验代码：using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace Consolejishuhe3_4 class Program static void Main(string args) float n, t,pi; int s; pi = 0; t = 1; n = 1; s = 1; while (Math.Abs(t) = Math.Pow(10, -6) pi += t; n += 2; s = -s; t = s / n; pi *= 4; Console.WriteLine(pi=0, pi); Console.ReadKey(); 3-5运行结果：实验代码：using System;using System.Collections.Generic;using System.Linq;using System.Te*t;namespace ConsoleG_3_6 class Program static void Main(string args)
