C#金雪云课后题参考答案

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1、C#教程习题参考答案第一章(1).NETFramework是平台，VisualStudio.NET是集成开发环境，C#是一种.NET平台下的开发语言(2)易于掌握、支持跨平台、面向对象、与XML相融合(3)组织资源、避免命名冲突(4)…(5)…第二章上机练习(1)...(2)usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;namespace上机练习2{classProgram{staticvoidMain(string[]args){stringmyTe

2、xt;intOther=0;intnumLetters=0;intnumDigits=0;charch;intindex=0;Console.WriteLine("请输入要分析的字符串");myText=Console.ReadLine().ToUpper();while(index

3、("字符串分析结果为：");Console.WriteLine("字母有{0}个",numLetters);Console.WriteLine("数字有{0}个",numDigits);Console.WriteLine("其他支符有{0}个",Other);}}}(3)usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;namespace上机练习3{classProgram{classRectangle{privatedoublex;privatedoub

4、ley;publicRectangle(doublex,doubley){this.x=x;this.y=y;}publicdoubleGetArea(){returnx*y;}publicdoubleGetZhouChang(){return(x+y)*2;}}staticvoidMain(string[]args){doublea=1.5;doubleb=2.3;Console.WriteLine("长方形的周长是："+(a+b)*2);Console.WriteLine("长方形的面积是："+a*b);Rectanglert=newRectangle(1

5、.5,2.3);Console.WriteLine("长方形的周长是："+rt.GetArea());Console.WriteLine("长方形的面积是："+rt.GetZhouChang());}}}(4)usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;namespaceConsoleApplication1{classProgram{staticvoidMain(string[]args){stringstr=Console.ReadLine();

6、char[]ch=str.ToCharArray();//字符串转换为字符数组//输出转换结果foreach(charcinch){Console.WriteLine("{0}",c);}//实现反转char[]chtemp=str.ToCharArray();intlongs=ch.GetLength(0);for(inti=0;i<=longs-1;i++){chtemp[i]=ch[longs-i-1];}////使用修改后的字符数组构造新字符串stringstr2=newstring(chtemp);Console.WriteLine(str2);Co

7、nsole.ReadLine();}}}(5)程序为：usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;namespace上机练习5{classProgram{classEmployee{privateintid;publicintId{get{returnid;}set{id=value;}}privatestringname;publicstringName{get{returnname;}set{name=value;}}privateboolmar

8、ry;publicboolMarry{