asp判断email

关键词:asp判断email,asp判断email正确,asp判断email合法,asp判断email的函数,返回值为false,true

function IsValidEmail(email)

dim names, name, i, c

IsValidEmail = true

names = Split(email, "@")

if UBound(names) <> 1 then

IsValidEmail = false

exit function

end if

for each name in names

if Len(name) <= 0 then

IsValidEmail = false

exit function

end if

for i = 1 to Len(name)

c = Lcase(Mid(name, i, 1))

if InStr("abcdefghijklmnopqrstuvwxyz_-.", c) <= 0 and not IsNumeric(c) then

IsValidEmail = false

exit function

end if

next

if Left(name, 1) = "." or Right(name, 1) = "." then

IsValidEmail = false

exit function

end if

next

if InStr(names(1), ".") <= 0 then

IsValidEmail = false

exit function

end if

i = Len(names(1)) - InStrRev(names(1), ".")

if i <> 2 and i <> 3 then

IsValidEmail = false

exit function

end if

if InStr(email, "..") > 0 then

IsValidEmail = false

end if

end function