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import java.util.Scanner;
公共类p2 {
publicstaticvoidmain (字符串[ ] args ) {
system.out.println (请输入n的值)
sannera=newscanner(system.in );
int n=a.nextInt (;
if(N20 ) {
返回;
}
long sn=0;
wile(N0 ) {
sn=snJieCheng(n;
n;
}
system.out.println(sn;
}
隐私保护克隆工程(intn ) {
long sn=1;
wile(N0 ) {
sn=sn*n;
n=n-1;
}
返回Sn;
}
} http://www.Sina.com/http://www.Sina.com /
import java.util.Scanner;
公共类p2 {
publicstaticvoidmain (字符串[ ] args ) system.out.println (请输入' n的值); sannera=newscanner(system.in ); int n=a.nextInt (; if(N20 ) {返回; }long sn=0; int m=1; for(intI=0; in; I () {m *=i; sn =m; }system.out.println(sn; }} 问题描述: