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 %> |
|
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 %> |
|
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") %> |
|
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) %> |
|
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%> |
|
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 %>
<% 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: |
返回两个日期之间的差值 。 |
|
SYNTAX: |
DateDiff(timeinterval,date1,date2 [, firstdayofweek [, firstweekofyear]]) |
|
ARGUMENTS: |
timeinterval 表示相隔时间的类型,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: |
从8/4/99 到2000年还有 150 天. |
|
|
Day() |
|
FUNCTION: |
返回一个月的第几日 . |
|
SYNTAX: |
Day(date) |
|
ARGUMENTS: |
date 是任何有效的日期。 |
|
EXAMPLE: |
<%=Day(#8/4/99#)%> |
|
RESULT: |
4 |
|
|
FormatCurrency() |
|
FUNCTION: |
返回表达式,此表达式已被格式化为货币值 |
|
SYNTAX: |
FormatCurrency(Expression [, Digit [, LeadingDigit [, Paren [, GroupDigit]]]]) |
|
ARGUMENTS: |
Digit 指示小数点右侧显示位数的数值。默认值为 -1,指示使用的是计算机的区域设置; LeadingDigit 三态常数,指示是否显示小数值小数点前面的零。 |
|
EXAMPLE: |
<%=FormatCurrency(34.3456)%> |
|
RESULT: |
$34.35 |
|
|
FormatDateTime() |
|
FUNCTION: |
返回表达式,此表达式已被格式化为日期或时间 |
|
SYNTAX: |
FormatDateTime(Date, [, NamedFormat]) |
|
ARGUMENTS: |
NamedFormat 指示所使用的日期/时间格式的数值,如果省略,则使用 vbGeneralDate. |
|
EXAMPLE: |
<%=FormatDateTime("08/4/99", vbLongDate)%> |
|
RESULT: |
Wednesday, August 04, 1999 |
|
|
FormatNumber() |
|
FUNCTION: |
返回表达式,此表达式已被格式化为数值. |
|
SYNTAX: |
FormatNumber(Expression [, Digit [, LeadingDigit [, Paren [, GroupDigit]]]]) |
|
ARGUMENTS: |
Digit 指示小数点右侧显示位数的数值。默认值为 -1,指示使用的是计算机的区域设置。; LeadingDigit i指示小数点右侧显示位数的数值。默认值为 -1,指示使用的是计算机的区域设置。; Paren 指示小数点右侧显示位数的数值。默认值为 -1,指示使用的是计算机的区域设置。; GroupDigit i指示小数点右侧显示位数的数值。默认值为 -1,指示使用的是计算机的区域设置。. |
|
EXAMPLE: |
<%=FormatNumber(45.324567, 3)%> |
|
RESULT: |
45.325 |
|
|
FormatPercent() |
|
FUNCTION: |
返回表达式,此表达式已被格式化为尾随有 % 符号的百分比(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时返回小时数. |
|
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个字符串中第一次出现的位置. |
|
SYNTAX: |
Instr([start, ] strToBeSearched, strSearchFor [, compare]) |
|
ARGUMENTS: |
Start为搜索的起始值,strToBeSearched接受搜索的字符串 strSearchFor要搜索的字符.compare比较方式(详细见ASP常数) |
|
EXAMPLE: |
<% strText = "This is a test!!" pos = Instr(strText, "a") response.write pos %> |
|
RESULT: |
9 |
|
|
InstrRev() |
|
FUNCTION: |
同上,只是从字符串的最后一个搜索起 |
|
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: |
返回数值类型,不四舍五入。 |
|
SYNTAX: |
Int(number) |
|
ARGUMENTS: |
|
|
EXAMPLE: |
<%=INT(32.89)%> |
|
RESULT: |
32 |
|
|
IsArray() |
|
FUNCTION: |
判断一对象是否为数组,返回布尔值 . |
|
SYNTAX: |
IsArray(name) |
|
ARGUMENTS: |
|
|
EXAMPLE: |
<% strTest = "Test!" response.write IsArray(strTest) %> |
|
RESULT: |
False |
|
|
IsDate() |
|
FUNCTION: |
判断一对象是否为日期,返回布尔值 |
|
SYNTAX: |
IsDate(expression) |
|
ARGUMENTS: |
expression is any valid expression. |
|
EXAMPLE: |
<% strTest = "8/4/99" response.write IsDate(strTest) %> |
|
RESULT: |
True |
|
|
IsEmpty() |
|
FUNCTION: |
判断一对象是否初始化,返回布尔值. |
|
SYNTAX: |
IsEmpty(expression) |
|
ARGUMENTS: |
|
|
EXAMPLE: |
<% Dim i response.write IsEmpty(i) %> |
|
RESULT: |
True |
|
|
IsNull() |
|
FUNCTION: |
判断一对象是否为空,返回布尔值. |
|
SYNTAX: |
IsNull(expression) |
|
ARGUMENTS: |
|
|
EXAMPLE: |
<% 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: |
<% 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: |
<% 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: |
<% 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: |
<% 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: |
<% 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: |
<% 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! |
|
|
Right() |
|
FUNCTION: |
返回字符串右边第length个字符以前的字符(含第length个字符). |
|
SYNTAX: |
Right(string, length) |
|
ARGUMENTS: |
. |
|
EXAMPLE: |
<% strTest = "This is an test!" response.write Right(strTest, 3) %> |
|
RESULT: |
st! |
|
|
Rnd() |
|
FUNCTION: |
产生一个随机数. |
|
SYNTAX: |
Rnd [ (number) ] |
|
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 |