ASP to determine how many users log in, anxious, how to judge not to let the same user name on multiple machines at the same time a system is completed in a new loginconn.asp file copy the following code to save to connect to the database
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ASP to determine how many users log in, how to judge not to let the same user name on multiple machines at the same time landing a system
There are two ways to implement this functionality:
1. ApplicationUsing the Application object: If you are
ASP character intercept function, take the character function
' Define string discriminant functionfunction strlen (str)Dim P_lenP_len=0Strlen=0If Trim (str) <> "" ThenP_len=len (Trim (str))For Xx=1 to P_lenIf ASC (Mid (str,xx,1)) Strlen=int
The first time to write ASP class, to achieve the function: the implementation of a phased statistical program, output statistics and so on.
Program code:
Class Ccclsprocesstimerecorder "' ASP program code execution time
'***********************************************' Function name: Joinchar' Function: Add to address? Or &' Parameters: strURL----URL' Return value: Added? or & 's Web site' Pos=instr (1, "ABCDEFG", "CD")' The POS returns 3 to find and the position
Function outhtml (str) dim stemp stemp = str outhtml = " if IsNull (stemp) = Tru E Then exit Function end If stemp = Replace (Stemp, "&", "") stemp = Replace (Stemp, " stemp = Replace (stemp, ">", ">") stemp = Replace (Stemp,
, if you do not install the AspJpeg components please download here. Http://down.111cn.net/down/soft/object/2009/0227/35.html
Function chkimg (IMG)On error Resume Next ' in order to capture error messages, the code needs to be able to continue
function Array_no (CXSTR1,CXSTR2,CXSTR3)If Len (CXSTR3) > 0 ThenIf not IsNumeric (CXSTR3) ThenArray_no = "Sorry, parameter 3 type must be number"Exit FunctionEnd IfElseArray_no = "Sorry, parameter 3 type must be number"Exit FunctionEnd IfIf IsArray (
Ajax introductionAJAX = asynchronous JavaScript and XML.AJAX is a technology used to create fast dynamic web pages.By performing a small amount of data exchange with the server in the background, AJAX can implement asynchronous updates on webpages.
When our website needs to support downloading large files, if it is not controlled, it may cause a user to have no response when accessing the download page, causing the browser to crash. You can refer to the following code to avoid this problem.
If you use pure c code, you must use defframeproc and defmdichildproc to create windows. In mfc, use cmdiframewnd/cmdichildwnd ;. in the. net Framework platform, set form. ismdicontainer and form. no matter which method is used, the core of
Solve the problem that manzana supports Chinese (or utf8) operationsAt the beginning, I studied for a long time and focused on conversion of character encoding. I used many methods to convert the Chinese file names passed back by itunesmobiledevice
Asp tutorial. net winform textbox event combination codeFunctional requirements:The user name cannot be blank.The user's age must be a number greater than or equal to 0;User address cannot be blankThe user's role must be "software" or be blankThe
01: // 02: // use the value in the byte array to initiate a new instance of zipinteger structure03: // Note: This constructor will destroy the value of the passed bits parameter.04: // 05: // An array of byte values in the order of big-endian 06:
Throw new exceptionI have seen some people use throw new to participate in business logic in simple functions. For example, the following code:Catch (exception ex){String error = ex. message;}Public object dosomething (string username){Try{If
Asp tutorial. net c # Add a node to treeviewVoid creat_node (stringName, microsoft. web. ui. webcontrols. treenode t1, string number) {// Define a new nodeMicrosoft. web. ui. webcontrols. treenode t2 = newMicrosoft. web. ui. webcontrols.
Now many free space providers need to add their own ads, and there is a host above that will not put ads in the space, it is also free and supports four languages: htm, html, asp, and jsp.Space: 200 MB (only Html is supported to ensure speed and
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