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ASP的函数详解
作者:武汉SEO闵涛  文章来源:敏韬网  点击数1612  更新时间:2009/4/23 10:27:40  文章录入:mintao  责任编辑:mintao
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  ARGUMENTS:
  EXAMPLE: <%
  Randomize()
  response.write RND()
  %>

  RESULT: 任何一个在0 到 1 之间的数

Round()
  FUNCTION: 返回按指定位数进行四舍五入的数值.
  SYNTAX: Round(expression [, numRight>)
  ARGUMENTS: numRight数字表明小数点右边有多少位进行四舍五入。如果省略,则 Round 函数返回整数.
  EXAMPLE: <%
  i = 32.45678
  response.write Round(i)
  %>

  RESULT: 32

Rtrim()
  FUNCTION: 去掉字符串右边的字符串.
  SYNTAX: Rtrim(string)
  ARGUMENTS:
  EXAMPLE: <%
  strTest = "This is a test!! "
  response.write RTrim(strTest)
  %>

  RESULT: This is a test!!

Second()
  FUNCTION: 返回秒.
  SYNTAX: Second(time)
  ARGUMENTS: .
  EXAMPLE: <%=Second(#12:34:28 PM#)%>
  RESULT: 28

StrReverse()
  FUNCTION: 反排一字符串
  SYNTAX: StrReverse(string)
  ARGUMENTS:
  EXAMPLE: <%
  strTest = "This is a test!!"
  response.write StrReverse(strTest)
  %>

  RESULT: !!tset a si sihT

Time()
  FUNCTION: 返回系统时间.
  SYNTAX: Time()
  ARGUMENTS: .
  EXAMPLE: <%=Time%>
  RESULT: 9:58:28 AM

Trim()
  FUNCTION: 去掉字符串左右的空格.
  SYNTAX: Trim(string)
  ARGUMENTS: string is any valid string expression.
  EXAMPLE: <%
  strTest = " This is a test!! "
  response.write Trim(strTest)
  %>

  RESULT: This is a test!!

UBound()
  FUNCTION: 返回指定数组维数的最大可用下标.
  SYNTAX: Ubound(arrayname [, dimension>)
  ARGUMENTS: dimension (optional) 指定返回哪一维上界的整数。1 表示第一维,2 表示第二维,以此类推。如果省略 dimension 参数,则默认值为 1.
  EXAMPLE: <%
  i = Array("Monday","Tuesday","Wednesday")
  response.write UBound(i)
  %>

  RESULT: 2

UCase()
  FUNCTION: 返回字符串的大写形式.
  SYNTAX: UCase(string)
  ARGUMENTS:
  EXAMPLE: <%
  strTest = "This is a test!!"
  response.write UCase(strTest)
  %>

  RESULT: THIS IS A TEST!!

VarType()
  FUNCTION: 返回指示变量子类型的值
  SYNTAX: VarType(varName)
  ARGUMENTS:
  EXAMPLE: <%
  i = 3
  response.write varType(i)
  %>

  RESULT: 2(数字)详见"asp常数"

WeekDay()
  FUNCTION: 返回在一周的第几天.
  SYNTAX: WeekDay(date [, firstdayofweek>)
  ARGUMENTS: .
  EXAMPLE: <%
  d = #8/4/99#
  response.write Weekday(d)
  %>

  RESULT: 4(星期三)

WeekDayName()
  FUNCTION: 返回一周第几天的名字.
  SYNTAX: WeekDayName(weekday [, Abb [, firstdayofweek>>)
  ARGUMENTS: Abb可选。Boolean 值,指明是否缩写表示星期各天的名称。如果省略, 默认值为 False,即不缩写星期各天的名称.firstdayofweek指明星期第一天的数值
  EXAMPLE: <%
  d = #8/4/99#
  response.write WeekdayName(Weekday(d))
  %>

  RESULT: Wednesday

Year()
  FUNCTION: 返回当前的年份.
  SYNTAX: Year(date)
  ARGUMENTS:
  EXAMPLE: <%=Year(#8/4/99#)%>
  RESULT: 1999

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