簡單的：if 5>4 then response.write "5大於4"

常規的：

if 5>4 then

response.write "5大於4"

else

response.write "5小於4"

end if

多個條件：

if 5>5 then

response.write "5大於5"

elseif 5=5 then

response.write "5等於5"

else

response.write "5小於5"

end if

巢狀的話把 其中的一個 response.write 換成一個

if * then

*

else

end if

即可

-------------

a=5

if a>0 then

if a=5 then

response.write "a等於5"

else

response.write "a不等於5"

end if

else

response.write "a小於0"

end if