1到9的平方和staticvoidMain(string[]args){inth=0;for(inti=1;i<=9;i++){h=h+i*i;}Console.WriteLine(h);}1到100的累加staticvoidMain(string[]args){intsum=0;for(inti=1;i<=100;i++)sum=sum+i;Console.WriteLine("1到的累加总合为：{0}",sum);}}}10个行输出被7整除的数staticvoidMain(string[]args){for(inti=100;i<=200;i++)for(intj=1;j<=10;j++){if(i%7==0){Console.Write("{0}",i);break;}}7行倒三角for(inta=1;a<=7;a++){for(intb=1;b<=a;b++)Console.Write("");for(intc=1;c<=15-2*a;c++){Console.Write("*");}Console.Write("\n");}乘法口诀表staticvoidMain(string[]args){inti,j;Console.WriteLine("成法口决表");for(i=1;i<=9;i++){for(j=1;j<=i;j++){Console.Write("{0}*{1}={2};",j,i,(i*j));}Console.WriteLine();}}}10的阶乘staticvoidMain(string[]args){inti=1;intn=1;do{n=n*i;i++;}while(i<=10);Console.WriteLine("10的阶乘结果为;{0}",n);}}For循环求i的值staticvoidMain(string[]args){doubles=0,x=1;//初始化for(intn=1;Math.Abs(x)>1e-8;n++,x*=(-1.0)*(2*n-3)/(2*n-1))s=s+x;s=s*4;Console.WriteLine("pi的值是:{0}",s);}While循环求pi的值staticvoidMain(string[]args){doubleresult=0,initial=1;//初始值longdeno=1;intflag=1;while(Math.Abs(initial)>1e-8)//循环条件{result=result+initial;//循环体,计算(Math.PI/4)deno=deno+2;flag=flag*(-1);initial=flag/Convert.ToDouble(deno);}result=result*4;//Math.PI值Console.WriteLine("pi值是:{0}",result);//输出Math.PI值}}While循环输出10的阶乘staticvoidMain(string[]args){inti=1;intn=1;while(i<=10){n=n*i;i++;}Console.WriteLine("10的阶乘结果为:{0}",n);}}百钱买百鸡staticvoidMain(string[]args){for(intg=0;g<20;g++)for(intm=0;m<35;m++)for(intx=0;x<100;x++){if((g+m+x==100)&&(5*g+3*m+1/(3*x)==100))Console.WriteLine("值为;{0}\n值为:{1}\n值:{2}",g,m,x);}}}水仙花staticvoidMain(string[]args){intx=Convert.ToInt32(Console.ReadLine());inty=Convert.ToInt32(Console.ReadLine());intz=Convert.ToInt32(Console.ReadLine());if(x*100+y*10+z==x*x*x+y*y*y+z*z*z)Console.WriteLine("水仙花");elseConsole.WriteLine("不是水仙花");}}找6ji42能被两个数整除staticvoidMain(string[]args){for(intj=0;j<=9;j++){for(inti=0;i<=9;i++){intx=60000+j*1000+i*100+42;if(x%32==0&&x%42==0)Console.WriteLi