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* Determines whether the specified content is null. If it is null, a warning box is displayed. */ Function isempty (thevalue, strmsg ){ If (thevalue = ""){ Alert (strmsg + "cannot be blank! "); Return true; } Return false; } /* Chinese judgment

Before I resigned, I was responsible for controlling the GSM module through serial port on the Windows CE system to implement general mobile phone functions. That is, the call, SMS, call record, Phone Book (SIM and mobile phone), and the setting

Method 1: Use the surfaceview class to describe Public class mainactivity extends activity {mysurfaceview; thread mainloop; private mysurfaceview view; @ overridepublic void oncreate (bundle savedinstancestate) {super. oncreate (savedinstancestate);

// ================================================ ========================================// Title:// The CREG class can easily read the Registry// Author:// Norains// Date:// Sunday 8-0000l-2007// Environment:// Evc4.0 + standard SDK// ===========

At the same time, we know that in the object-oriented advanced language, creating an object containing private members is one of the most basic features. It provides attributes and methods to access private members to hide internal details. Although

Use Visual C ++ 5 to implement OpenGL programmingLiu Dongyu1. Introduction to OpenGLAs we all know, OpenGL was originally used to develop high-quality image interfaces on their graphics workstation. But in recent years it has become an excellent

I have translated an article about the Java read/write lock, because I have never read the related content of the read/write lock before. Here, even if I have learned and translated it, it may not be accurate! Well, let's talk less about it. Let's

1. Add Permissions (1) create a premission. py file in the API/utils folder. The Code is as follows: Message is the prompt message when there is no permission #! /Usr/bin/ENV Python # Coding: utf-8from rest_framework.permissions import

CI Framework Source Reading notes 6 extension hooks hook.php,cihook.php The CI framework allows you to add or change the core functions of the system (such as rewriting the cache, output, etc.) without modifying the core code of the system. For

Function checkform1 (){ If (form1.username. value = ""){Alert ("name cannot be blank! ");Return false;}If (! Iscardname (form1.username. Value )){Alert ("name error! ");Return false;}If (form1.usercode. value = ""){Alert ("ID card number cannot be

Today I read a book to write an example, encountered a problem.Because array.every is a method defined by ECMAScript 5, browser versions supported by IE +, FireFox, Opera 9.5+, Safari and chrome* are required, compatibility is required when

/********************************************************************************* * Eo_jslib.js * JavaScript Regular expression test **********************************************************************************/ The checksum is all made up of

A regular expression is a text pattern that includes ordinary characters (for example, letters between A and z) and special characters (called "metacharacters"). The pattern describes one or more strings to match when searching for text. 1. Basic

Copy Code code as follows: /** * Database PDO operations */ Class Mysqlpdo { public static $PDOStatement = null; /** * Database Connection parameter configuration * @var Array * @access Public */ public static $config = Array (); /**

Special characters in regular expressions Character implication \ As a turn, that is, the characters usually after "\" are not interpreted in the original sense, such as the/b/matching character "B", when B is preceded by a backslash/\b/, to

Main program: Package Model; public class Sendmailtosomeone { public static void Main (String []args) {Sendmailtosomeone smts=new sendmailtosomeone (); Smts.send ("AA", "Hello", "Hanshu Nping@tsinghua.org.cn "," pinghan2005@sohu.com "," xxx ","

I remember the scripting code for the right mouse button when I first came into contact with Dynamic HTML and JavaScript, many of which were used to prevent browsers from copying text or other content on the page without permission, and later

Import java.text.ParseException;Import java.util.Collection;Import Java.util.Map; /*** Common validation Method helper classes, providing validation of strings, collections, arrays, numeric values ***/public class Validatehelper {/*** Determine if a

Two ways to connect to a MySQL database : (1) Using PHP database function to connect This is one of the most common ways.Four database functions are used here:Mysql_connect () establishes a connection to the MySQL server.mysql_select_db (): Select

JavaScript Regular Expressions1. Using the JS regular expression, first of all to understand the JS regular expressions commonly used symbols, such as: /.../ Represents the beginning and end of a pattern ^ Match