VF程序设计的题目,高手进

2024-09-09 23:02:41
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*1

CLEAR

LOCAL nsum

nsum=0

DIMENSION num(15)

num(1)=1

num(2)=1

?"求数列1,1,2,3,5,8,13,21...前十五项之和。"

?"结果如下:"

?"数列的前15项为:",ALLTRIM(STR(num(1)))," ",ALLTRIM(STR(num(2)))," "

FOR i=3 TO 15

num(i)=num(i-1)+num(i-2)

ALLTRIM(STR(num(i)))," "

ENDFOR

FOR i=1 TO 15

nsum=nsum+num(i)

ENDFOR

?"以上数列的和为:",ALLTRIM(STR(nsum))

*2

CLEAR

?"编程计算S=1+(1+2)+(1+2+3)+……+(1+2+3...+N),N从键盘输入。"

input "请输入一个数值N:" to n

LOCAL csum,a

csum=0

a=0

FOR i=1 TO n

a=a+i

csum=csum+a

ENDFOR

"计算结果为:",csum