C#程序题集合-程序填空题.doc

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1、五程序填空题（红色位置为空，红色文字为答案）（1）字符及其ASCII码转换usingSystem;namespaceL2_1{classL2_1{staticvoidMain(){Console.Write("请输入一个字符:");charch=Console.ReadKey().KeyChar;Console.WriteLine("r字符{0}的ASCII代码为{1}",ch,(int)ch);Console.Write("请输入一个整数:");inti=int.Parse(Console.ReadLine());Consol

2、e.WriteLine("ASCII码{0}对应的字符为{1}",i,(char)i);}}}(2)字符串加密和解密usingSystem;namespaceL5_2{classL5_2{staticvoidMain(){Console.WriteLine("请输入一个字符串：");stringtext=Console.ReadLine();Console.Write("请输入加密字符：");intkey=Console.Read();stringtext1="";foreach(charchintext)text1+=(char)(

3、ch^key);Console.WriteLine("加密后的字符串为："+text1);stringtext2="";foreach(charchintext1)text2+=(char)(ch^key);Console.WriteLine("解密后的字符串为："+text2);}}}(3)坐标点类publicclassCzPoint{privatedoublex;privatedoubley;publicdoubleX{get{returnx;}set{x=value;}}publicdoubleY{get{returny;}se

4、t{y=value;}}publicCzPoint(doublex,doubley){this.x=x;this.y=y;}publicvoidMove(doubledx,doubledy){x+=dx;y+=dy;}publicstaticbooloperator==(CzPointp1,CzPointp2){return(p1.x==p2.x)&&(p1.y==p2.y);}publicstaticbooloperator!=(CzPointp1,CzPointp2){return(p1.x!=p2.x)&&(p1.y!=p2.y

5、);}}(4)通过方法交换两个变量的值usingSystem;namespaceP3_1{classFormalParametersSample{publicstaticvoidMain(){doublex=5;doubley=10;CzMathc=newCzMath();Console.WriteLine("交换前x={0},y={1}",x,y);//c.Swap(x,y);c.Swap(refx,refy);Console.WriteLine("交换后x={0},y={1}",x,y);}}classCzMath{publicv

6、oidSwap(refdoublex,refdoubley){doubletemp=x;x=y;y=temp;}}}（5）排序输出三个数并求和usingSystem;namespaceP3_6{classVariableInitiationSample{staticvoidMain(){doublesum;CzMath.Output(outsum,1,2.5,5);}}classCzMath{//交换两个数的值publicstaticvoidSwap(refdoublex,refdoubley){doubletemp=x;x=y;y=

7、temp;}//排序输出三个数并求和publicstaticvoidOutput(outdoublesum,paramsdouble[]array){sum=0;if(array.Length!=3)return;sum=array[0]+array[1]+array[2];if(array[0]

8、rray[0],refarray[1]);Console.WriteLine("{0}{1}{2}",array[0],array[1],array[2]);Console.WriteLine(sum);}}}（6）闰年