| 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 |
本类阅读TOP10