this project is to create a website for the company. one requirment is that the website can "extract" updated information from its competitor's website, which means, when i open our company's website, I can see updated info if the competitor's website updates.
how to realise this function? use what kind of programming language?


偶查了一下午，只找到个很类似的软件
但也不知道是什么做的。
http://www.2158.net/

不管什么语言里, 都可以读取对方的网页

( 比如 PHP 可以简单的fopen一个 URL, Java可以open对方的80socket)

然后匹配对应的pattern 取出内容就可以了

比如你知道 <title> .... </title> 一定是页面标题