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ASP常用函数详解

Array()
  FUNCTION: 返回一个数组
  SYNTAX: Array(list)
  ARGUMENTS: 字符,数字均可
  EXAMPLE: <%
  Dim myArray()
  For i = 1 to 7
  Redim Preserve myArray(i)
  myArray(i) = WeekdayName(i)
  Next
  %[/IMG]
  RESULT: 建立了一个包含7个元素的数组myArray
  myArray("Sunday","Monday", ... ... "Saturday")
CInt()
  FUNCTION: 将一个表达式转化为数字类型
  SYNTAX: CInt(expression)
  ARGUMENTS: 任何有效的字符均可
  EXAMPLE: <%
  f = "234"
  response.write cINT(f) + 2
  %[/IMG]
  RESULT: 236
  转化字符"234"为数字"234",如果字符串为空,则返回0值
CreateObject()
  FUNCTION: 建立和返回一个已注册的ACTIVEX组件的实例。
  SYNTAX: CreateObject(objName)
  ARGUMENTS: objName 是任何一个有效、已注册的ACTIVEX组件的名字.
  EXAMPLE: <%
  Set con = Server.CreateObject("ADODB.Connection")
  %[/IMG]
  RESULT:
CStr()
  FUNCTION: 转化一个表达式为字符串.
  SYNTAX: CStr(expression)
  ARGUMENTS: expression 是任何有效的表达式。
  EXAMPLE: <%
  s = 3 + 2
  response.write "The result is: " & cStr(s)
  %[/IMG]
  RESULT: 转化数字“5”为字符“5”。
Date()
  FUNCTION: 返回当前系统日期.
  SYNTAX: Date()
  ARGUMENTS: None.
  EXAMPLE: <%=Date%[/IMG]
  RESULT: 8/4/99
DateAdd()
  FUNCTION: 返回一个被改变了的日期。
  SYNTAX: DateAdd(timeinterval,number,date)
  ARGUMENTS: timeinterval is the time interval to add; number is amount of time intervals to add; and date is the starting date.
  EXAMPLE: <%
  currentDate = #8/4/99#
  newDate = DateAdd("m",3,currentDate)
  response.write newDate
  %[/IMG]
  <%
  currentDate = #12:34:45 PM#
  newDate = DateAdd("h",3,currentDate)
  response.write newDate
  %[/IMG]
  RESULT: 11/4/99
  3:34:45 PM
  "m" = "month";
  "d" = "day";
  If currentDate is in time format then,
  "h" = "hour";
  


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