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

    Month()
  　FUNCTION: 返回日期.
  　SYNTAX: Month(date)
  　ARGUMENTS: date is any valid date expression.
  　EXAMPLE: <%=Month(#08/04/99#)%>
  　RESULT: 8
  　
  MonthName()
  　FUNCTION: Returns a string identifying the specified month.
  　SYNTAX: MonthName(month, [, Abb])
  　ARGUMENTS: month is the numeric representation for a given month; Abb
  (optional) is a boolean value used to display month abbreviation. True
  will display the abbreviated month name and False (default) will not show
  the abbreviation.
  　EXAMPLE: <%=MonthName(Month(#08/04/99#))%>
  　RESULT: August
  　
  Now()
  　FUNCTION: Returns the current system date and time.
  　SYNTAX: Now()
  　ARGUMENTS: None
  　EXAMPLE: <%=Now%>
  　RESULT: 8/4/99 9:30:16 AM
  　
  Replace()
  　FUNCTION: Returns a string in which a specified sub-string has been
  replaced with another substring a specified number of times.
  　SYNTAX: Replace(strToBeSearched, strSearchFor, strReplaceWith [, start
  ][, count ][, compare]]])
  　ARGUMENTS: strToBeSearched is a string expression containing a sub-
  string to be replaced; strSearchFor is the string expression to search for
  within strToBeSearched; strReplaceWith is the string expression to replace
  sub-string strSearchFor; start (optional) is the numeric character
  position to begin search; count (optional) is a value indicating the
  comparision constant.
  　EXAMPLE: <%
  strTest = "This is an apple!"
  response.write Replace(strTest, "apple", "orange")
  %>
  　RESULT: This is an orange!