Error Handling
In the previous example, I have mentioned many times that you can enter correct values before performing computation. However, in actual software use, how can we ensure that users always enter correct data during use?
For example, for
Class boxinfoimg
'Usage of the transmission class
'Image upload and upload information acquisition class
'Usage:
'Dim imgup
'Set imgup = new boxinfoimg
[Source: feitec.com content, reprinted, please specify the source]
'Property:'Imgup. width'
Introduction: connecting to various types of databases and database operation functions
BelowProgramIt can be said that the omnipotent database connection program can connect almost all the MS databases, and you can study it yourself (this
Compression:
Function fzip (ssourcefolder, stargetzipfile)
'This function will add all of the files in a source folder to a zip file
'Using windows 'native folder zip capability.
Dim oshellapp, ofso, ierr, serrsource, serrdescription
Set oshellapp =
CopyCode The Code is as follows: # define global variables here
Dim digitimgs [10], digitimgs1 [10], digitimgs2 [10]
Function main
While true // execute the following code in an infinite loop
# Add the Code created or recorded by the
Overview: The function process is a custom function, which is widely used in plug-ins. The application scope is small, and the process can only return one or more combinations. The sub process can return values and modify referenced objects. For
'================================================ ==============
'Process name: SaveRemoteFile
'Usage: Save the remote file to the local device.
'Parameter: LocalFileName ------ local file name
'Parameter: RemoteFileUrl ------ Remote File URL
'======
This function can be used in collection or online addition of articles.
The code that saves remote images to the local device searched by myself on baidu is difficult to use and cannot be understood even if there is no ready-made full code.
I
This article mainly introduces Node. create and manage external processes in js. This article describes how to execute External commands and sub-processes, for more information about how to use Node to efficiently process I/O operations, you should
This article mainly introduces how to use Python to get started with pygame for aircraft war games (4): Get the mouse position and movement. If you need a friend, refer to the next target for copying the airplane war, of course, after the copy, you
Because the front-end time server has been released, a webshell scanner has been written to kill phpwebshell. no matter whether the trojan or pony includes a sentence, the Code is now released.
The Code is as follows:
/*+ -----------------------
Global objects and global variablesConcept: All properties can be accessed anywhere in the program, that is, global variables. In JavaScript, typically window is a global object, and node. JS is global, and all global variables are properties of the
Processes are like human beings, and we create a process through the fork () function, so how do we abort the process?Process exit1. In Linux any let a process exitProcess exit indicates that the process is about to end. In Linux, process exits are
1. BreakThe use of the break statement is mainly the switch statement and the loop structure.Use the break statement in the loop structure to exit the loop and then execute the first statement below the loop structure.If a break statement is used in
exit () function ends. Program Returns a value to the operating system, informs the program of the final state. After the exit () function is called, the control is handed over to the operating system. Before the end of the program, the exit ()
PHP parameter filtering, data filtering detailed, PHP detailed
Here is a piece of code to introduce PHP parameter filtering
Class mysafe{public $logname; public $isshwomsg; function __construct () {set_error_handler (' myerror ', e_all); -----}
1.break statementsThe use of a break statement is primarily a switch statement and a looping structure. Break statement, exit the loop directly and execute the first statement below the loop structure. If a break statement is used in a multiple
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