FlashGet、网络蚂蚁想必大家都很熟悉，他们都是利用多线程同步下载的原理来提高下载速度，同时具有断点续传的功能，这些软件到底是如何实现的呢？答案在代码中揭晓。 -FlashGet, NetAnts everybody must be very familiar with, they are using multi-thread synchronization to download the principle to improve download speeds, but also ha