计算机VB方面问题

一.
1. ((year mod 4 =0) and (year mod 100 <>0)) or (year mod 400 =0)
2. b^2 - 4*a*c>=0
3. (sex="男" and age>=18 and age<=20 and size>1.65) or (sex="女" and age>=16 and age<=19 and size>1.69)
4. married and age>=26 and workingage>=5
二
1：int(Rnd*11)+2
2: int(x*100+0.5)/100
3: mid(cstr(n),2,1)
三.
1:HAI
2:12.3
3:10
4:1234678

一、
1: if year mod 4 =0 then
if year mod 100 <> 0 then
print year
end if
elseif year mod 400 = 0 then
print year
next
end sub
2:比较长（略）

二、
1：int(Rnd*11)+2
2:format(N1,"00.00")
3:num mod 100 /10
三、
1:hai
2:0.123
3:10
4:1234678