In standard C++, we can use try catch to catch and exception when something goes wrong. These are some built in exception support in C++. By including the #include , we can now catch exceptions in C++ programs. This actually helps us on debugging our code and reduce the maintenance work.However sometimes if we want to create our own custom exception class. What should we do?We should include the #include line and then extend the exception class and implement some methods as you like. The general format is :#include using namespace std;class MyException:public exception{public:  &nbs...

现在主流的网站开发语言无外乎asp、php、asp.net、jsp等。网页从开始简单的hmtl到复杂的服务语言，走过了10多个年头，各种技术层出不穷，单个的主流技术也在不断翻新的版本，现在分析下各种语言的区别、优势、劣势、...

Currently people can access FTP list and download resources hosted on FTP servers in Chrome through FTP URLs, but this may not work anymore in the near future. In a post published by Chrome engineers, there is a plan to deprecate FTP support in Chrome version 82.The major motivation for this deprecation is that Chrome doesn't have an encrypted FTP connection support(FTPs), this raises security risk of downloading resources over FTP. Since users can access FTP URLs and download resources, there is no encryption of the data which indicates any sensitive information would be exposed to middle man...

Everybody talks about mastering the art of staying productive. Not many people willingly accept that such efforts are futile. It’s impossible to stay productive 100% of the time, and this will never change.Something that I believe to be just as important, if not more so, is what we make of our least productive time. We all have the capacity to be extremely productive for some part of the day. Even the world’s grandest underachievers. But I believe that to be successful running your own business, to steal a cricket metaphor, your tail has to wag. You have to find a way to maximise...

Base64 is a data encoding scheme used in safe data transfer such as HTTP and its extensions. Base64 encoding can conver arbitrary group of bytes into a sequence of readable ASCII characters. These converted characters can safely put in a HTTP header without causing any problem while the peers process the HTTP header.Base64 encoding was invented as part of the MIME content transfer encoding. It is similar to other encoding schemes such as Uuencode and BinHex but with higher efficiency.8 bit to 6 bitBase64 will divide the bytes into groups of 6 bits. Every 6 bits will map to a characte...

Social media is becoming a very important traffic source to one website. We can see social media share buttons or links in most websites ranging from news website to personal blogs. It is also a very important optimization area where many SEO experts recommend. There are many social medias we can share our links to such as Facebook and Twitter. Most of these website provide share button for us to easily integrate them into our websites, but these buttons usually have default styles(fixed size, fixed images). If we want to customize these buttons so that they conform to our website design grace...

MySQL Connector/C++ is one of the latest connectors for MySQL, developed by Sun Microsystems. The MySQL connector for C++ provides an object-oriented application programming interface (API) and a database driver for connecting C++ applications to the MySQL Server.When we want to build a database application with C++ using Visual Studio 2010, we may use the MySQL Connector/C++, but sometimes we may encounter different errors, either compile or runtime error. After tried many times, I finally made my C++ program successfully connect to MySQL database with Visual Studio 2010. Here I share what I ...

Visual Basic is a better programming language than Visual C#. Who says so? This article! Here are 10 reasons why you should always choose VB over C#. 1 – “Rose is a rose is a rose is a rose” This is a quotation from Gertrude Stein’s 1922 play Geography and Plays. However, the poetry wouldn’t work in C#, because – unforgivably – it’s a cASe-SeNSitIvE language. This is madness! Before I start ranting, let me just acknowledge that case-sensitivity confers one (and only one) advantage – it makes it easier to name private and public prope...