本程序演示了如何下载http文件，请参考！-this program demonstrated how to download http document, please refer!

本程序演示了如何下载http文件，请参考！-this program demonstrated how to download http document, please refer!

这是一个internet下载的程序，可以用两种方法下载，包括使用http下载和openURL下载-This is an internet downloadable program that can be downloaded using two methods, including the use of http download and download openURL