2.27factorial.java

JAVA程序设计的源代码

class Factorial{
public static void main(String arg[]){
int i,num=10,result=1;
for(i=1;i<=num;i++)    //计算1*2...*num的值，相当于num!
result*=i;  
System.out.println(num+"! = "+result);
}
}