vb编程，程序设计

来源：百度知道 编辑：UC知道 时间：2024/06/18 13:28:02
s=1*1+2*2+...+N*N
s=1*2+2*3+...+N*(N+1)
p=N!=1*2*3*...*N
s=3+6+9...
s=1/1+1/2+...+1/N
请问这几个程序应该怎么写？

(1)for i = 1 to n
s=s+i*i
next
(2)for i = 1 to n
s=s+i9*(i+1)
next
(3)for i = 1 to n
p=p*n
next
(4)do while i<=n
s=s+n
n=n+3
loop
(5)for i=1 to n
s=s+1/n
next

For i = 1 To n 'n=Text1.Text
s = s + i * i
Next
Print s

For i = 1 To n 'n=Text1.Text
s = s + i *(i+1)
Next

For i = 1 To n 'n=Text1.Text
s = s * i
Next

For i = 3 To n step 3
s=s+i
Next

For i = 1 To n
s=s+1/(i+1)
Next

s=1*1+2*2...+n*n
for i=1 to n
s=s+i*i
next

for i=1 to n
s=s+s*(s+1)
next

for i=1 to N
s1=s1+i*i
s2=s2+i*(i+1)
p=p*i
s3=s3+i*3
s4=s4+1/i
next
很简单