import java.util.Scanner;
public class 阶乘 {public static void main(string[] args){
- Scanner sc=new Scanner(System.in);
- System.out.printIn("请输入一个整数");
- int n=sc.nextInt();
- System.out.printIn("结果为:"+f(n));
- }
- public static int f(int n){
- int sum=1;
- for(i=1;i<=n;++i){
- sum*=i;
- }
- return sum;
- }
- }
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