HTTP方式文件断点续传

HTTP下载，断点续传

 属性            大小     日期    时间   名称
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     目录           0  2016-06-06 13:35  IdHttp下载文件断点续传\
     文件         252  2016-06-06 11:28  IdHttp下载文件断点续传\MainPro.dpr
     文件       52882  2016-06-06 11:35  IdHttp下载文件断点续传\MainPro.dproj
     文件        1342  2016-06-06 11:35  IdHttp下载文件断点续传\MainPro.dproj.local
     文件         162  2016-06-06 11:35  IdHttp下载文件断点续传\MainPro.identcache
     文件       58468  2016-06-06 12:32  IdHttp下载文件断点续传\MainPro.res
     文件        2063  2016-06-06 13:07  IdHttp下载文件断点续传\uMainForm.fmx
     文件        4036  2016-06-06 13:24  IdHttp下载文件断点续传\uMainForm.pas
     目录           0  2016-06-06 13:24  IdHttp下载文件断点续传\__history\
     文件         222  2016-06-06 11:27  IdHttp下载文件断点续传\__history\MainPro.dpr.~1~
     文件        1942  2016-06-06 11:25  IdHttp下载文件断点续传\__history\uMainForm.fmx.~1~
     文件        1996  2016-06-06 11:28  IdHttp下载文件断点续传\__history\uMainForm.fmx.~2~
     文件        2063  2016-06-06 12:54  IdHttp下载文件断点续传\__history\uMainForm.fmx.~3~
     文件         592  2016-06-06 11:26  IdHttp下载文件断点续传\__history\uMainForm.pas.~1~
     文件        3104  2016-06-06 11:34  IdHttp下载文件断点续传\__history\uMainForm.pas.~2~
     文件        3530  2016-06-06 12:58  IdHttp下载文件断点续传\__history\uMainForm.pas.~3~
     文件        3682  2016-06-06 13:07  IdHttp下载文件断点续传\__history\uMainForm.pas.~4~
     目录           0  2016-06-06 13:26  IdHttp下载文件断点续传\__recovery\
     文件        2063  2016-06-06 13:46  IdHttp下载文件断点续传\__recovery\uMainForm.fmx
     文件        4271  2016-06-06 13:46  IdHttp下载文件断点续传\__recovery\uMainForm.pas
     文件         184  2016-06-06 13:46  IdHttp下载文件断点续传\__recovery\__recovery.ini