ASP四个电子邮箱验证函数

ASP #正则 #邮箱 #函数2012-05-08 11:44

本文章提供的下面邮箱验证函数都是经过测试的各位可以放心的使用，有用正则表达式的也有不是的，好了下面我们来看看这几种asp教程电子邮箱验证函数是不是你喜欢的风格吧。

Public Function IsEmail(ByVal PString) 
Dim Plt,Pgt : Plt = False : Pgt = False 
For x = 2 To Len(PString) - 1 
If Mid(PString,x,1) = "@" Then Plt = True 
If Mid(PString,x,1) = "." And Plt = True Then Pgt = True 
Next 
If Plt = True And Pgt = True Then 
IsEmail = True 
Else 
IsEmail = False 
End if 
End Function

'********************************************
'函数名：IsValidEmail
'作用：检查Email地址合法性
'参数：email ----要检查的Email地址
'返回值：True ----Email地址合法
' False ----Email地址不合法
'********************************************

Public Function IsValidEmail(Email) 
Dim names, name, I, c 
IsValidEmail = True 
names = Split(Email, "@") 
If UBound(names) <> 1 Then IsValidEmail = False: Exit Function 
For Each name In names 
If Len(name) <= 0 Then IsValidEmail = False:Exit Function 
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 
Next 
If Left(name, 1) = "." Or Right(name, 1) = "." Then IsValidEmail = False:Exit Function 
Next 
If InStr(names(1), ".") <= 0 Then IsValidEmail = False:Exit Function 
I = Len(names(1)) - InStrRev(names(1), ".") 
If I <> 2 And I <> 3 Then IsValidEmail = False:Exit Function 
If InStr(Email, "..") > 0 Then IsValidEmail = False 
End Function

Function isemail(strng) 
isemail = false 
Dim regEx, Match 
Set regEx = New RegExp 
regEx.Pattern = "^w+((-w+)|(.w+))*@[A-Za-z0-9]+((.|-)[A-Za-z0-9]+)*.[A-Za-z0-9]+$" 
regEx.IgnoreCase = True 
Set Match = regEx.Execute(strng) 
if match.count then isemail= true 
End Function

Public Function ChkMail(ByVal Email) 
Dim Rep,Pmail : ChkMail = True : Set Rep = New RegExp 
Rep.Pattern = "([.a-zA-Z0-9_-]){2,10}@([a-zA-Z0-9_-]){2,10}(.([a-zA-Z0-9]){2,}){1,4}$" 
Pmail = Rep.Test(Email) : Set Rep = Nothing 
If Not Pmail Then ChkMail = False 
End Function

ASP 教程

ASP 对象

ASP 组件

ASP 总结

ASP四个电子邮箱验证函数

相关文章