Rss & SiteMap
Foxtable(狐表) http://www.foxtable.com
是否数字:
Dim s1 As String = "123"
Dim s2 As String = "abc"
Output.show(IsNumeric(s1))
Output.show(IsNumeric(s2))
非数字就是字母了吧?
是否邮箱:
Dim s1 As String = "abc@21cn.com"
If s1 Like "*@*.*[a-z]" Then
messagebox.show("是邮件地址")
End If