日韩性视频-久久久蜜桃-www中文字幕-在线中文字幕av-亚洲欧美一区二区三区四区-撸久久-香蕉视频一区-久久无码精品丰满人妻-国产高潮av-激情福利社-日韩av网址大全-国产精品久久999-日本五十路在线-性欧美在线-久久99精品波多结衣一区-男女午夜免费视频-黑人极品ⅴideos精品欧美棵-人人妻人人澡人人爽精品欧美一区-日韩一区在线看-欧美a级在线免费观看

歡迎訪問 生活随笔!

生活随笔

當前位置: 首頁 > 编程资源 > 编程问答 >内容正文

编程问答

ASP函数详解

發布時間:2024/8/5 编程问答 40 豆豆
生活随笔 收集整理的這篇文章主要介紹了 ASP函数详解 小編覺得挺不錯的,現在分享給大家,幫大家做個參考.
近來發現有些函數在使用的老是會記不起參數,總是要BAIDU一下才行,或許是使用得少的原因吧,這次就網羅在這里了,以后要查也方便了。
----------------------------------------------------------------------------------------------------------

Array()
  FUNCTION: 返回一個數組
  SYNTAX: Array(list)
  ARGUMENTS: 字符,數字均可
  EXAMPLE: <%
  Dim myArray()
  For i = 1 to 7
  Redim Preserve myArray(i)
  myArray(i) = WeekdayName(i)
  Next
  %>
  RESULT: 建立了一個包含7個元素的數組myArray
  myArray("Sunday","Monday", ... ... "Saturday")

CInt()
  FUNCTION: 將一個表達式轉化為數字類型
  SYNTAX: CInt(expression)
  ARGUMENTS: 任何有效的字符均可
  EXAMPLE: <%
  f = "234"
  response.write cINT(f) + 2
  %>
  RESULT: 236
  轉化字符"234"為數字"234",如果字符串為空,則返回0值

CreateObject()
  FUNCTION: 建立和返回一個已注冊的ACTIVEX組件的實例。
  SYNTAX: CreateObject(objName)
  ARGUMENTS: objName 是任何一個有效、已注冊的ACTIVEX組件的名字.
  EXAMPLE: <%
  Set con = Server.CreateObject("ADODB.Connection")
  %>
  RESULT:

CStr()
  FUNCTION: 轉化一個表達式為字符串.
  SYNTAX: CStr(expression)
  ARGUMENTS: expression 是任何有效的表達式。
  EXAMPLE: <%
  s = 3 + 2
  response.write "The result is: " & cStr(s)
  %>
  RESULT: 轉化數字“5”為字符“5”。

Date()
  FUNCTION: 返回當前系統日期.
  SYNTAX: Date()
  ARGUMENTS: None.
  EXAMPLE: <%=Date%>
  RESULT: 8/4/99

DateAdd()
  FUNCTION: 返回一個被改變了的日期。
  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
  %>

  <%
  currentDate = #12:34:45 PM#
  newDate = DateAdd("h",3,currentDate)
  response.write newDate
  %>
  RESULT: 11/4/99
  3:34:45 PM

  "m" = "month";
  "d" = "day";

  If currentDate is in time format then,
  "h" = "hour";
  "s" = "second";

DateDiff()
  FUNCTION: 返回兩個日期之間的差值 。
  SYNTAX: DateDiff(timeinterval,date1,date2 [, firstdayofweek [, firstweekofyear]])
  ARGUMENTS: timeinterval 表示相隔時間的類型,如“M“表示“月”。
  EXAMPLE: <%
  fromDate = #8/4/99#
  toDate = #1/1/2000#
  response.write "There are " & _
  DateDiff("d",fromDate,toDate) & _
  " days to millenium from 8/4/99."
  %>
  RESULT: 從8/4/99 到2000年還有 150 天.

Day()
  FUNCTION: 返回一個月的第幾日 .
  SYNTAX: Day(date)
  ARGUMENTS: date 是任何有效的日期。
  EXAMPLE: <%=Day(#8/4/99#)%>
  RESULT: 4

FormatCurrency()
  FUNCTION: 返回表達式,此表達式已被格式化為貨幣值
  SYNTAX: FormatCurrency(Expression [, Digit [, LeadingDigit [, Paren [, GroupDigit]]]])
  ARGUMENTS: Digit 指示小數點右側顯示位數的數值。默認值為 -1,指示使用的是計算機的區域設置;   LeadingDigit 三態常數,指示是否顯示小數值小數點前面的零。
  EXAMPLE: <%=FormatCurrency(34.3456)%>
  RESULT: $34.35

FormatDateTime()
  FUNCTION: 返回表達式,此表達式已被格式化為日期或時間
  SYNTAX: FormatDateTime(Date, [, NamedFormat])
  ARGUMENTS: NamedFormat 指示所使用的日期/時間格式的數值,如果省略,則使用 vbGeneralDate.
  EXAMPLE: <%=FormatDateTime("08/4/99", vbLongDate)%>
  RESULT: Wednesday, August 04, 1999

FormatNumber()
FormatPercent()
  FUNCTION: 返回表達式,此表達式已被格式化為尾隨有 % 符號的百分比(乘以 100 )。 (%)
  SYNTAX: FormatPercent(Expression [, Digit [, LeadingDigit [, Paren [, GroupDigit]]]])
  ARGUMENTS: 同上.
  EXAMPLE: <%=FormatPercent(0.45267, 3)%>
  RESULT: 45.267%

Hour()
  FUNCTION: 以24時返回小時數.
  SYNTAX: Hour(time)
  ARGUMENTS:
  EXAMPLE: <%=Hour(#4:45:34 PM#)%>
  RESULT: 16
  (Hour has been converted to 24-hour system)

Instr()
  FUNCTION: 返回字符或字符串在另一個字符串中第一次出現的位置.
  SYNTAX: Instr([start, > strToBeSearched, strSearchFor [, compare>)
  ARGUMENTS: Start為搜索的起始值,strToBeSearched接受搜索的字符串 strSearchFor要搜索的字符compare 比較方式(詳細見ASP常數)
  EXAMPLE: <%
  strText = "This is a test!!"
  pos = Instr(strText, "a")
  response.write pos
  %>
  RESULT: 9

InstrRev()
  FUNCTION: 同上,只是從字符串的最后一個搜索起
  SYNTAX: InstrRev([start, > strToBeSearched, strSearchFor [, compare])
  ARGUMENTS: 同上.
  EXAMPLE: <%
  strText = "This is a test!!"
  pos = InstrRev(strText, "s")
  response.write pos
  %>
  RESULT: 13

Int()
  FUNCTION: 返回數值類型,不四舍五入。
  SYNTAX: Int(number)
  ARGUMENTS:
  EXAMPLE: <%=INT(32.89)%>
  RESULT: 32

IsArray()
  FUNCTION: 判斷一對象是否為數組,返回布爾值 .
  SYNTAX: IsArray(name)
  ARGUMENTS:
  EXAMPLE: <%
  strTest = "Test!"
  response.write IsArray(strTest)
  %>
  RESULT: False

IsDate()
  FUNCTION: 判斷一對象是否為日期,返回布爾值
  SYNTAX: IsDate(expression)
  ARGUMENTS: expression is any valid expression.
  EXAMPLE: <%
  strTest = "8/4/99"
  response.write IsDate(strTest)
  %>
  RESULT: True

IsEmpty()
  FUNCTION: 判斷一對象是否初始化,返回布爾值.
  SYNTAX: IsEmpty(expression)
  ARGUMENTS:
  EXAMPLE: <%
  Dim i
  response.write IsEmpty(i)
  %>
  RESULT: True

IsNull()
  FUNCTION: 判斷一對象是否為空,返回布爾值.
  SYNTAX: IsNull(expression)
  ARGUMENTS:
  EXAMPLE: <%
  Dim i
  response.write IsNull(i)
  %>
  RESULT: False
  
  IsNumeric()
  FUNCTION: 判斷一對象是否為數字,返回布爾值.
  SYNTAX: IsNumeric(expression)
  ARGUMENTS:
  EXAMPLE: <%
  i = "345"
  response.write IsNumeric(i)
  %>
  RESULT: True
  就算數字加了引號,ASP還是認為它是數字。

IsObject()
  FUNCTION: 判斷一對象是否為對象,返回布爾值.
  SYNTAX: IsObject(expression)
  ARGUMENTS:
  EXAMPLE: <%
  Set con = Server.CreateObject("ADODB.Connection")
  response.write IsObject(con)
  %>
  RESULT: True

LBound()
  FUNCTION: 返回指定數組維的最小可用下標.
  SYNTAX: Lbound(arrayname [, dimension])
  ARGUMENTS: dimension 指明要返回哪一維下界的整數。使用 1 表示第一維,2 表示第二維,以此類  推。如果省略 dimension 參數,默認值為 1.
  EXAMPLE: <%
  i = Array("Monday","Tuesday","Wednesday")
  response.write LBound(i)
  %>
  RESULT: 0
LCase()
  FUNCTION: 返回字符串的小寫形式
  SYNTAX: Lcase(string)
  ARGUMENTS: string is any valid string expression.
  EXAMPLE: <%
  strTest = "This is a test!"
  response.write LCase(strTest)
  %>
  RESULT: this is a test!

Left()
  FUNCTION: 返回字符串左邊第length個字符以前的字符(含第length個字符).
  SYNTAX: Left(string, length)
  ARGUMENTS:
  EXAMPLE: <%
  strTest = "This is a test!"
  response.write Left(strTest, 3)
  %>
  RESULT: Thi

Len()
  FUNCTION: 返回字符串的長度.
  SYNTAX: Len(string | varName)
  ARGUMENTS:
  EXAMPLE: <%
  strTest = "This is a test!"
  response.write Len(strTest)
  %>
  RESULT: 15

LTrim()
  FUNCTION: 去掉字符串左邊的空格.
  SYNTAX: LTrim(string)
  ARGUMENTS:
  EXAMPLE: <%
  strTest = " This is a test!"
  response.write LTrim(strTest)
  %>
  RESULT: This is a test!

Mid()
  FUNCTION: 返回特定長度的字符串(從start開始,長度為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: 返回時間的分鐘
  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!

Right()
  FUNCTION: 返回字符串右邊第length個字符以前的字符(含第length個字符).
  SYNTAX: Right(string, length)
  ARGUMENTS: .
  EXAMPLE: <%
  strTest = "This is an test!"
  response.write Right(strTest, 3)
  %>
  RESULT: st!

Rnd()
  FUNCTION: 產生一個隨機數.
  SYNTAX: Rnd [ (number) ]
  ARGUMENTS:
  EXAMPLE: <%
  Randomize()
  response.write RND()
  %>
  RESULT: 任何一個在0 到 1 之間的數

Round()
  FUNCTION: 返回按指定位數進行四舍五入的數值.
  SYNTAX: Round(expression [, numRight])
  ARGUMENTS: numRight數字表明小數點右邊有多少位進行四舍五入。如果省略,則 Round 函數返回整數.
  EXAMPLE: <%
  i = 32.45678
  response.write Round(i)
  %>
  RESULT: 32

Rtrim()
  FUNCTION: 去掉字符串右邊的字符串.
  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: 返回系統時間.
  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: 返回指定數組維數的最大可用下標.
  SYNTAX: Ubound(arrayname [, dimension>)
  ARGUMENTS: dimension (optional) 指定返回哪一維上界的整數。1 表示第一維,2 表示第二維,以此類推。如果省略 dimension 參數,則默認值為 1.
  EXAMPLE: <%
  i = Array("Monday","Tuesday","Wednesday")
  response.write UBound(i)
  %>
  RESULT: 2

UCase()
  FUNCTION: 返回字符串的大寫形式.
  SYNTAX: UCase(string)
  ARGUMENTS:
  EXAMPLE: <%
  strTest = "This is a test!!"
  response.write UCase(strTest)
  %>
  RESULT: THIS IS A TEST!!

VarType()
  FUNCTION: 返回指示變量子類型的值
  SYNTAX: VarType(varName)
  ARGUMENTS:
  EXAMPLE: <%
  i = 3
  response.write varType(i)
  %>
  RESULT: 2(數字)詳見"asp常數"

WeekDay()
  FUNCTION: 返回在一周的第幾天.
  SYNTAX: WeekDay(date [, firstdayofweek])
  ARGUMENTS: .
  EXAMPLE: <%
  d = #8/4/99#
  response.write Weekday(d)
  %>
  RESULT: 4(星期三)

WeekDayName()
FUNCTION: 返回一周第幾天的名字.
SYNTAX: WeekDayName(weekday [, Abb [, firstdayofweek>>)
ARGUMENTS: Abb可選。Boolean 值,指明是否縮寫表示星期各天的名稱。如果省略, 默認值為 False,即不縮寫星期各天的名稱.firstdayofweek指明星期第一天的數值

EXAMPLE:

<%
d = #8/4/99#
response.write WeekdayName(Weekday(d))
%>
RESULT: Wednesday

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

轉載于:https://www.cnblogs.com/MaxIE/archive/2006/02/05/325637.html

總結

以上是生活随笔為你收集整理的ASP函数详解的全部內容,希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯,歡迎將生活随笔推薦給好友。