Function: Judging whether an object is initialized, return to the Boolean value.
SYNTAX: ISEMPTY (EXPRESSION)
Arguments:
EXAMPLE: <%
DIM I
Response.Write ISempty (i)
%>
Result: True
Isnull ()
Function: Judging whether an object is empty, return to the Boolean value.
Syntax: isnull (Expression)
Arguments:
EXAMPLE: <%
DIM I
Response.write isnull (i)
%>
Result: False
Isnumeric ()
Function: Judging whether an object is a number and returns a Boolean value.
SYNTAX: IsNumeric (Expression)
Arguments:
EXAMPLE: <%
i = "345"
Response.write isnumeric (i)
%>
Result: True
Even if the number adds quotation marks, ASP still thinks it is a number.
IsObject ()
Function: Judging whether an object is an object, return to the Boolean value.
Syntax: IsObject (Expression)
Arguments:
EXAMPLE: <%
Set con = Server.createObject ("AdoDb.Connection")
Response.Write IsObject (con)
%>
Result: True
Lbound ()
Function: Returns the minimum available subscript of the specified array dimension.
Syntax: lbound (arrayname [, dimension])
Arguments:; Dimension indicates which dimension to return. Use 1 to represent the first dimension, 2
Represents the second dimension, so that this is pushed. If the Dimension parameter is omitted, the default value is 1.
EXAMPLE: <%
i = array ("Monday", "Tuesday", "Wednesday")
Response.write lbound (i)
%>
RESULT: 0
Lcase ()
Function: Returns the lowercase form of the string
Syntax: Lcase (String)
Arguments: string is any valid string expression.
EXAMPLE: <%
strTrtest = "this is a test!"
Response.write Lcase (StRTEST)
%>
Result: this is a test!
Left ()
Function: Returns the previous character (including Changth characters) previously character (including Changth characters) on the left side of the string.
Syntax: Left (String, Length)
Arguments:
EXAMPLE: <%
strTrtest = "this is a test!"
Response.write Left (strTest, 3)
%>
Result: thi
Len ()
Function: Returns the length of the string.
Syntax: Len (String | Varname)
Arguments:
EXAMPLE: <%
strTrtest = "this is a test!"
Response.write len (strTest)
%>
RESULT: 15
Ltrim ()
Function: Remove the space left on the left side of the string.
Syntax: Ltrim (String)
Arguments:
Example: <% strTest = "this is a test!"
Response.write Ltrim (StRTEST)
%>
Result: this is a test!
MID ()
Function: Returns a string of specific lengths (starting from START, length 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: Return time division.
Syntax: Minute (TIME)
Arguments:
EXAMPLE: <% = minute (# 12: 45: 32 pm #)%>
Result: 45
Month ()
Function: Return date.
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: <% = no%>
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 time.
SYNTAX: Replace (Strtobesearched, Strsearchfor, Strreplacewith "[, Start
] [, COUNT] [, Compare]]])
Arguments: string expression containing a sub-
String to be replaced; strsserchfor is the string express to search for
Withnin strabsearched; strreplacewith is the string expression to replace
Sub-string strsearchfor; start (optional) is the numeric character
................... ..
EXAMPLE: <%
strTRTEST = "this is an apple!"
Response.Write Replace (Strtest, "Apple", "Orange")
%>
Result: this is an align!
