C#程序设计实验报告2

1、实验报告二姓名专业软件工程课程名 称C#程序设计、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 四、实验材料、工具、或软件Win dows XP Professio nal 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：直

2、逾人半径：5自的半径为巧圆的周 =31-4159.圆的 =78.53975 球体的体积=392.£9875实验代码:using System;using System.Collecti on s.Ge neric;using System.L inq;using System.Text;n amespace _2_1class Programstatic void Main(string args)const double PI = 3.14159;double r, perimeter, area, volume;Console.Write ("请输入半径:”);Stri

3、ng s = Con sole.ReadL in e();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",perimeter ,area );Console.WriteLine("球体的体积=0",volume );Con sole.ReadL in e();2

4、-2求三角形的周长和面积运行结果：was ra Jura Ju实验代码:using System;using System.Collecti on s.Ge neric;using System.L inq;using System.Text;n amespace _2_2 class Programstatic void Main(string args)double a, b, c, p, h, area;Console.Write(”请输入三角形的边 a:");stri ng s = Con sole.ReadL in e();a = double.Parse(s);Conso

5、le .Write ("请输入三角形的边 b:");s = Con sole.ReadL in e();b = double.Parse(s);Console.Write(”请输入三角形的边 c:");s = Con sole.ReadL in e();c = double.Parse(s);if (a > 0 && b > 0 && c > 0 && a + b > c && a + c > b && b + c > a)Console.Write

6、Line("三角形三边分别为：a=0,b=1,c=2",a,b,c); p = a + b + c;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！”)；Con sole.ReadKey();2-3分段函数的实现nJx=5y=6 x=-5,y=6 x=5,y=6 x=5 u=G运行结果-990927699183129909276991f

7、i312-99092769918312实验代码：using System;using System.Collecti on s.Ge neric; using System.L inq;using System.Text;n amespace _2_3_2class Programstatic void Main(string args)double x, y;Con sole .Write ("请输入 x：");stri ng s = Con sole.ReadL in e();x = double.Parse(s);y = (x * x - 3 * x) / (x +

8、1) + 2 * Math.PI + Math.Si n( x);if(x<0)y=Math.Log(-5*x)+6*Math .Sqrt (Math .Abs (x)+Math Pow (Math.E ,4)-Math .Pow (x+1,3);Console .WriteLine ("方法一 ：x=0,y=1",x,y);if(x>=0)y = (x * x - 3 * x) / (x + 1) + 2 * Math.PI + Math.Si n(x);if(x<0)y=Math.Log(-5*x)+6*Math.Sqrt (Math .Abs (x)

9、+Math .Pow(Math.E,4)-Math .Pow (x+1,3);Console .WriteLine ("方法二:x=0,y=1",x,y);if(x>=0)y = (x * x - 3 * x) / (x + 1) + 2 * Math.PI + Math.Si n(x);elsey=Math.Log(-5*x)+6*Math .Sqrt (Math .Abs (x)+Math Pow (Math .E,4)-Math Pow (x+1,3);Console .WriteLine ("方法三:x=0,y=1",x,y);y=(x&g

10、t;=0)?(x* x -3* x) / (x +1)+2* Math.PI +Math.Sin(x):Math.Log(-5*x)+6*Math .Sqrt (Math .Abs (x)+Math .Pow (Math .E,4)-Math .Pow (x+1,3);Console .WriteLine ("方法四:x=0,y=1",x,y);Co nsole .ReadKey ();2-4三个数比较大小运行结果：实验代码：using System;using System.Collecti on s.Ge neric;using System.L inq;using S

11、ystem.Text;n amespace _2_4class Programstatic void Main(string args)int a, b, c, a1, b1, c1, t, Nmax, Nmin, Nmid;Ran dom rMun = new Ran dom();a = rMun .Next(101);b = rMun .Next(101);c= rMun .Next(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

12、= 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;Nmax =Math .Max (Math .Max (a,b),c);Nmin = Math.Mi n( Math.Mi n(a, b), c);Nmid = a + b + c - Nmax - Nmi n;a = Nmi n; b = Nmid;a=0,b=1,c=2&qu

13、ot;,a,b,c);c = Nma x;Console.WriteLine("(方法二)升序值: Co nsole.ReadKey();2-5求解一元二次方程 运行结果：b C 1 系系茅无 K1A1A程 >请注i冃0 0 6认奈数b描荣相命实根为：1肓揃人筮数孔：1请糊入塞数b： -11匕労程右两个不等实根为 了和边、系数” L働系薮-1 输入亲薮c； 0-5程有商个不等实根为=0-S+0-S1和取弓实验代码：using System;using System.Collecti on s.Ge neric;using System.Text;n amespace Con s

14、ole2_5class Programstatic void Main(string args)double a, b, c, delta, x1, x2, realPart, imagePart;Console.Write("请输入系数 a:");String s = Con sole.ReadL in e();a = double.Parse(s);Console.Write(” 请输入系数 b:");s = Con sole.ReadL in e();b = double.Parse(s);Console.Write(” 请输入系数 c:");s

15、= Con sole.ReadL in e();c = double.Parse(s);if(a=0)if(b=O) Console.WriteLine("此方程无解！");else Console.WriteLine("此方程的解为：0",-c/b);elsedelta=b*b-4*a*c;if(delta>0)x1= (-b+Math.Sqrt(delta)/(2*a);x2=(-b-Math.Sqrt(delta)/(2*a);Console.WriteLine("此方程有两个不等实根：0 , 1",x1,x2);else

16、if(delta =0)Console.WriteLine("此方程有两个相等实根：0",-b/(2*a);elserealPart=-b/(2*a);imagePart=Math.Sqrt(-delta)/(2*a);Co nsole.WriteLi ne(”此方程有两个不等实根：0+1i 和 0-1i",realPart,imagePart);Co nsole.ReadKey();2-6switch语句实现多重分支运行结果:z fil«:/C:/VSS/2-6/2-6/hin实验代码:using System;using System.Collect

17、i on s.Ge neric; using System.Text;n amespace Con soleApplicati on1class Programstatic void Main(string args)int i;Console.Write(” 输入一个数字(17):");String s = Con sole.ReadL in e();i = in t.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

18、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(”对应的星期为：星期六 ”)； break;case 7:Console.WriteLine("对应的星期为：星期日 "); break;default:Console.W

19、riteLine("输入错误！”)；break ;Co nsole.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.Collecti on s.Ge neric;using System.Text;n amespace Con sole2_7class Programstatic void Main(string args)int 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 =

20、 in t.Parse(C on sole.ReadL in e();if (salary > 1500) c = 15;法二运行结果: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 11:case 12:case 13:case 14:f = 2.0 / 100 * salary; break;case

21、15:f = 3.0 / 100 * salary; break;Console.WriteLine("月工资=0,交纳党费=1", salary, f); Co nsole.ReadKey();代码：(if语句)using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace_2_7_2class Programstatic void Main( string args)int c; double f = 0;Console .Write("请输

22、入有固定收入的党员的月工资：”)；int salary = int .Parse( Console .ReadLine();if (salary > 0 && salary <= 400) f = 0.5 / 100 * salary;elseif(salary >400&& salary <= 600) f = 1.0/ 100*salary;elseif(salary >600&& salary <= 800) f = 1.5/ 100*salary;elseif(salary >800&&a

23、mp; salary <= 1500) f = 2.0 / 100* salary;elseif(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 .ReadKey();实验三：3-1运行结果:实验代码：using System;using System.Collections.Generic;using System.L inq;using Sy

24、stem.Text;n amespace _3_1class Programstatic void Main(string args)int i, n, fac = 1;stri ng s;n 二-1;while (n < 0)Console.Write(”请输入非负整数n:");s = Con sole.ReadL in e();n 二 in t.Parse(s);/方法一：for循环for (i = 1; i <= n; i+) fac *= i;Console.WriteLine(”For 循环：0! =1", n, fac);/方法二：while语句循环

25、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;dofac *= i; i+; while (i <= n);=1", n, fac);Console.WriteLine(”do.while 循环：0 !Con sole.ReadKey();3-2运行结果:如 f£le = /C = /VSS/3-2/3-2/biiVDebuE/3-2-EM11235813Z13455

26、891442333776109971597259441816765实验代码：using System;using System.Collections.Generic;using System.L inq;using System.Text;n amespace _3_2 class Programstatic 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)Co nsole.W

27、rite("0,5t", f3);nu m+;if (num % 5 = 0) Con sole.WriteLi ne();fl = f2;f2 = f3;f3 = fl + f2;Con sole.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.Text;namespace_3_3class Programstatic void Main( string args)int c, r;Console .Write(

28、"请输入总头数："); string s = Console .ReadLine(); int h = 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 <= h; C+)r = h - c;if (2 * c + 4 * r = f)Console.WriteLine("方法一：

29、鸡：0只，兔：1只",c ,r ); solution =true ;if (!solution) Console .Write("方法一：无解，请重新运行测试！");/方法二：解方程r = f / 2 - h;c = h - r;solution =false ;if (r>=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！

30、”);Console .ReadKey ();3-4利用级数和求PI 运行结果：西 f il&:/C:/TSS/3-4/3'4/biii/pi=3.141594实验代码：using System;using System.Collections.Generic;using System.Linq;using System.Text;namespaceConsolejishuhe3_4class Programstatic void Main( string args)float n, t,pi;int s;pi = 0; t = 1; n = 1; s = 1;while (

31、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.Text;namespaceConsoleG_3_6class Programstatic void Main( string args)int m,

32、n, r, m1, n1;RandomrNum = new Random);m1 = rNum.Next(101);n1 = rNum.Next(101);,m1, n1);Console .WriteLine("整数 1=0,整数 2=1"if (m1 > n1)m = m1; n = n1;elsem = n1; n = m1;dor =m %n;m =n ;n =r ; while (r !=0);Console .WriteLine ("最大公约数=0,最小公约数=1" ,m ,m1 *n1 /m );Console .ReadKey ()

33、;3-6打印九九乘法表 运行结果：代码：using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace_3_5class Programstatic void Main( string args)string s;/Console .WriteLine("九九乘法表”)；for ( int i = 1; i <= 9; i+)s =""for ( int j = 1; j <= i; j+)s += (string .Format(

34、"0*1=2", i, j, i * j).PadRight(8);Console .WriteLine(s);/Console .WriteLine("");九九乘法表");Console .WriteLine("for ( int i = 1; i <= 9; i+)s += s.PadRight(8 * (i - 1) + 1);for ( int j = i ; j <= 9; j+)s += (string .Format( "0*1=2", i, j, i * j).PadRight(8);

35、Console .WriteLine(s);Console .ReadKey();3-7运行结果:file: /C = /TS S/3- 7/ 3- 7/bin/Debug/3- 7. EJE刁法一：IF囱间所有的素数为*235711131719232931374143475359616?717983899711001的所有素数为=C0J.5J - m£9- m0- 5J,m£Wi, 53SJ .nCS-'EJ -m-CQl-5.0,5- inB-bz , nt<0,E>j.itiC 0,5, m<0,亠5> ,11<05> ,

36、in-0,5y05>Pra<0,51- mt BSJmCa. 5j -n实验代码：using System;using System.Collectio ns.Ge neric; using Syste m. Li nq;using System.Text;n amespace _3_7class Programstatic void Main( stri ng args)int m, k, i, num = 0;方法一：利用for循环和break语句Console.WriteLine("方法一：1T00 间所有的素数为："); for (m = 2; m <= 100; m+)k = (in t)(Math.Sqrt(m