日期:2009-10-19  浏览次数:20915 次

 IsNull()

  FUNCTION: 判断一对象是否为空,返回布尔值.
  SYNTAX: IsNull(expression)


  ARGUMENTS:
  EXAMPLE: $#@60;%
       Dim i
       response.write IsNull(i)
       %>
  RESULT: False

IsNumeric()

  FUNCTION: 判断一对象是否为数字,返回布尔值.
  SYNTAX: IsNumeric(expression)
  ARGUMENTS:
  EXAMPLE: $#@60;%
        i = "345"
        response.write IsNumeric(i)
       %>
  RESULT: True 就算数字加了引号,ASP还是认为它是数字。

IsObject()

  FUNCTION: 判断一对象是否为对象,返回布尔值.
  SYNTAX: IsObject(expression)
  ARGUMENTS:
  EXAMPLE: $#@60;%
        Set con = Server.CreateObject("ADODB.Connection")
        response.write IsObject(con)
       %>
  RESULT: True

LBound()

  FUNCTION: 返回指定数组维的最小可用下标.
  SYNTAX: Lbound(arrayname [, dimension])
  ARGUMENTS: ; dimension 指明要返回哪一维下界的整数。使用 1 表示第一维,2 表示第二维,以此类推。如果省略          dimension 参数,默认值为 1.
  EXAMPLE: $#@60;%
        i = Array("Monday","Tuesday","Wednesday")
        response.write LBound(i)
        %>
  RESULT: 0

LCase()

  FUNCTION: 返回字符串的小写形式
  SYNTAX: Lcase(string)
  ARGUMENTS: string is any valid string expression.
  EXAMPLE: $#@60;%
        strTest = "This is a test!"
        response.write LCase(strTest)
       %>
  RESULT: this is a test!

Left()

<   FUNCTION: 返回字符串左边第length个字符以前的字符(含第length个字符).
  SYNTAX: Left(string, length)
  ARGUMENTS:
  EXAMPLE: $#@60;%
       strTest = "This is a test!"
       response.write Left(strTest, 3)
       %>
  RESULT: Thi

Len()

  FUNCTION: 返回字符串的长度.
  SYNTAX: Len(string | varName)
  ARGUMENTS:
  EXAMPLE: $#@60;%
        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: $#@60;%
       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: $#@60;%
        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: $#@60;%=Minute(#12:45:32 PM#)%>
  RESULT: 45

Month()

  FUNCTION: 返回日期.
  SYNTAX: Month(date)
  ARGUMENTS: date is any valid date expression.
  EXAMPLE: $#@60;%=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: $#@60;%=MonthName(Month(#08/04/99#))%>
  RESULT: August

Now()

  FUNCTION: Returns the current system date and time.
  SYNTAX: Now()
  ARGUM