VF编写程序 1到10的阶乘 填空

Question

计算1！+2！+……+10！的结果,程序名为：CX3.PRG
程序代码如下：
SET TALK OFF
CLEAR
SUM=0
FOR i=1 TO 10
？？？？？？？

FOR j=1 TO i
X=X*j
ENDFOR
SUM=？？？？？
ENDFOR
? "1！+2！+……+10！=",SUM
SET TALK ON

Answer 1

SET TALK OFF
CLEAR
SUM=0
FOR i=1 TO 10
X=1 &&下面的计数循环出现了X这个值，前面却没有赋值，故此
FOR j=1 TO i
X=X*j
ENDFOR
SUM=SUM+X &&为实现累计的效果
ENDFOR
? "1！+2！+……+10！=",SUM
SET TALK ON