old code

The first few introduced the characteristics of design patterns and explained in detail the 4 creation patterns, which are responsible for generating object instances, followed by architectural patterns. first, what is the structure of the model ?

However, some of our programmers maintain the process of old code as if walking a dog. Every modification of a program left some hidden trouble, the result of a good code is all over the hidden dangers. Good programming habits are every programmer

The easiest thing to forget: gprof must be able to generate statistics after the program exits normally. So if your program is a long-running service, you must use signal capture a signal, and then safely exit, the problem I did not find before, the

Then we tested it in the interactive Python prompt: >>> Import subprocess >>> subprocess.check_call ("false") 0 When the other machine runs the same code, it throws the error correctly: >>> Subprocess.check_call ("false")

The event object is valid only in the course of occurrence. Some properties of an event are only meaningful for a particular event. For example, the fromelement and toelement attributes are only meaningful for onmouseover and onmouseout events.1,

Following IE instead of Internet Explorer, MF replaces Mozzila Firefox1. Document.form.item question(1) Existing problems:There are many Document.formname.item ("itemname") statements in existing code that cannot be run under MF(2) Solution:Switch

Examples of this article for you to introduce the JavaScript plug-in architecture knowledge points for your reference, the specific contents are as follows 1. JavaScript Plugin Architecture The following are all the code for plug-in alert, each of

Following IE instead of Internet Explorer, MF replaces Mozzila Firefox 1. Document.form.item question (1) Existing problems: There are many Document.formName.item ("itemname") statements in existing code that cannot be run under MF (2) Solution:

C # synchronous and asynchronous understanding, including await and async in 5.0 (learning notes ), Previously, I used a synchronization thread, that is, the load event first written into the image, and then processed the database call in it. Later

In the morning, we shared "Repeater control dynamic change columns (Header, Item, and Foot) information", which is used to dynamically change some columns. Although it is not completely dynamic, it has achieved the initial effect. If you are careful,

From http://www.yifeiyang.net/development-of-the-iphone-simply-1/ At the beginning of the new year, Vientiane was updated. From the beginning of the new year, let's take a closer look at the iPhone development. First, let's take a look at arc.

Compilation of js ie and Firefox compatibility (Original: hotman_x) Internet Explorer is replaced by IE and mozzila Firefox is replaced by MF. 1. Document. Form. Item Problems(1) existing problems:ExistingCodeThere are many statements such as

1. Preface This introductory tutorial is based on the Java language. This article will: Create a. proto file in which some PB messages are defined Use Pb Compiler Use Pb Java API to read and write data This article is only an Entry Manual. For

As a qualified programmer, there are too many reasons to encourage you to write neat and readable code. The most important thing is that many people will read the code again and again in the future. When you look back at your code one day, you will

 Borland Have a dream, a programmer's dream This article is published as an individual and does not represent any company opinion. Sirius As a programmer, I have been in the software industry for ten years. Now, I am lucky to be in Beijing Borland'

[Original link] The numberOf lines of source code comprising Linux kernel files recently surpassed the ten million mark after the latest release of Linux version 2.6.27, an analysis has found. However, that count between des blank lines, comments

This article describes how to decode the base64 encoded string of an image and output the image in Javascript. You can refer to the following example. The Code is as follows: Script///////////////////////////// Base64 encoded GIF image

C # refactoring skills Using the C # partial keyword, we can add the original class with the keyword partial, create a new class with the same name, and modify it with the partial. In the newly added class with the same name, we can start

Compilation of Javascript IE and Firefox compatibility [zt] Internet Explorer is replaced by IE and Mozzila Firefox is replaced by MF. 1. document. form. item Problems(1) existing problems:Many statements such as document. formName. item ("itemName"

Compilation of JavaScript IE and FF compatibility SubmittedJiashixiangOn 2006, July 28, PM. Javascript Learning Internet Explorer is replaced by IE and mozzila Firefox is replaced by MF. 1. Document. Form. Item Problems(1) existing problems:Many