160730

来源：互联网发布：防火知多少课件编辑：程序博客网时间：2024/06/05 20:37
import java.util.Scanner;public class homework {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stub//阶乘题Scanner in=new Scanner(System.in);int n=in.nextInt();int sum=1,t=0;for (int i = 1; i <=n; i++) {sum=sum*i;t+=sum;}in.close();System.out.println(sum);System.out.println(t);//斐波那契数列分数/*double a = 1, b = 1, sum = 0, zi=0, mu=0;for (int i = 0; i < 20; i++) {zi = a + b;mu = b;sum += zi / mu;a = b;b = zi;}System.out.println(sum);*///经典兔子问题，1 1 2 3/*int i,a=1,b=1,sum=0;int n=in.nextInt();if(n>2){for(i=3;i<=n;i++){sum=a+b;a=b;b=sum;}System.out.println("一共"+2*sum+"只兔子");}else{System.out.println("一共2只兔子");}*///九九乘法表/*int i,j;for(i=1;i<=9;i++){for(j=1;j<=i;j++){System.out.print(i+"*"+j+"="+i*j+" ");}System.out.println();}*///比较价格/*int i=1;System.out.print("第"+i+"家店的价格是：");int j = in.nextInt();for(i=2;i<=4;i++){System.out.print("第"+i+"家店的价格是：");int n=in.nextInt();if(n<j){j=n;}}System.out.println("最低价格是"+j);*/}}
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