02_编程实现1！+2！+……+10！的和

package exercise;/** * 编写程序实现在屏幕上输出1！+2！+……+10！的和 * @author lsq * */public class Factorial {public static void main(String[] args) {int i,j,k,sum = 0;//外层循环控制阶乘的个数for(i=1; i<=10; i++){//k的初始值是1，内循环结束后为某个阶乘的具体值k = 1;//内层阶乘：计算某个阶乘的和for(j=1; j<=i; j++){k = k*j;}sum += k;}System.out.println("1!+2!+……+10！ = "+sum);}}