package Day03;/*** 第四题：* 在数学中10!代表10的阶乘。既代表1*2*3*4....*10;* 现在要求编程求出8!。*/
public class Day03_Demo04 {public static void main(String[] args) {Jiecheng(5);}public  static  void Jiecheng(int a){int b = 1;StringBuffer c = new StringBuffer("1");for (int i = 1; i <= a; i++) {b *= i;if (i >= 2) {c.append("*").append(i);}}System.out.println(a + "=" + c);System.out.println(a + ":的乘阶为" + b);}
}