Len()
  　FUNCTION: 返回字符串的长度.
  　SYNTAX: Len(string | varName)
  　ARGUMENTS:　
  　EXAMPLE: <%
  strTest = "This is a test!"
  response.write Len(strTest)
  %>
  　RESULT: 15
  　
  LTrim()
  　FUNCTION: 去掉字符串左边的空格.
  　SYNTAX: LTrim(string)
  　ARGUMENTS:　
  　EXAMPLE: <%
  strTest = " This is a test!"
  response.write LTrim(strTest)
  %>
  　RESULT: This is a test!
  　
  Mid()
  　FUNCTION: 返回特定长度的字符串(从start开始,长度为length).
  　SYNTAX: Mid(string, start [, length])
  　ARGUMENTS:　
  　EXAMPLE: <%
  strTest = "This is a test! Today is Monday."
  response.write Mid(strTest, 17, 5)
  %>
  　RESULT: Today
  　
  Minute()
  　FUNCTION: 返回时间的分钏.
  　SYNTAX: Minute(time)
  　ARGUMENTS:　
  　EXAMPLE: <%=Minute(#12:45:32 PM#)%>
  　RESULT: 45