用迅雷下的资源不能断点续传，自己写了一个下载文件的程序，可以断点续传，可以多线程分段并发下载，还可以自己定义下载文件的开始位置，比工具灵活多了。

待改进问题：大文件下载速度抢不过其他下载工具，正在研究如何能保证自己程序对带宽不被占用。-HTTP use resources under the Thunder can not write a download program, can be HTTP, can be multi-threaded segments of concurrent downloads, can also define the beginning of the download files than the tool more flexible. To be improved: large file download speed rush, but other download tools, are studying how to ensure their own procedures the bandwidth occupied.