Function ToLink(Str)
    Dim RE   '正则表达式对象
    Dim strContent
    If IsNull(Str) Then Str=""
    Set RE = New RegExp '创建正则表达式对象
    With RE
      .Global = True    '搜索应用于整个字符串
      .IgnoreCase = True  '搜索不区分大小写的
      strContent=Str
      '***************************************************************
      '邮件地址链接自动设置
      '***************************************************************
        .Pattern="([w]*)@([w.]*)"
        strContent=.Replace(strContent," ")
      '***************************************************************
      '链接自动设置
      '***************************************************************
        '======根据要求再添加协议名称=======
        Dim D(3),I
        D(0)="http"
        D(1)="ftp"
        D(2)="news"
        D(3)="mms"
        '===================================
            For I=0 To UBound(D)
          .Pattern=D(I) + "://([w.]*)"
          strContent=.Replace(strContent," ")
        Next
      '***************************************************************
    End With
    Set RE=Nothing
    ToLink=strContent
  End Function