用VF程序求出1到100的自然数的奇偶数的和

第一种：
set talk on
clear
s1=0
s2=0
for i =1 to 100 step 2
s1=s1+i
endfor
for j=2 to 100 step 2
s2=s2+j
endfor
?"所有奇数和为：",s1
?"所有偶数和为：",s2
SET TALK off

第二种：
set talk on
clear
s1=0
s2=0

FOR i =1 TO 100
IF mod(i,2)<>0
s1=s1+i
ELSE
s2=s2+i
ENDIF
endfor
?"所有奇数和为：",s1
?"所有偶数和为：",s2
SET TALK off