多线程访问网页源码例程，是访问一个网页然后处理数据，在不使用多线程执行时速度更快，但如果目标网站访问速度过慢，则程序会严重的假死，使用多线程则可避免，但是部分代码执行速度会变慢。(Visit the website source multithreaded routines, it is to visit a Web page and then processes the data , without the use of multiple threads　 faster, but if the target site access speed is too slow , the program will seriously suspended animation , you can avoid the use of multi-threading , )