如何一次下载全部的文件（在document library里面）
默认好像没有这个功能
找个压缩控件，自己写个小feature放上即可
2007: http-://blogs.infosupport.-com/download-all-documents-from-a-document-library-feature/
2010: http-://www.sharepointanalysthq.-com/2012/10/download-multiple-documents-for-sharepoint-2010/
这里下载:
WSP: http-://www.deviantpoint.-com/file.axd?file=2010%2f5%2fDeviantPoint.DownloadZip.wsp
Source Code: http-://www.deviantpoint.-com/file.axd?file=2010%2f5%2fDeviantPoint.DownloadZip.zip