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PB使用WININET的FTP方式自动更新（三、获得要更新的文件数）(1)
三、获得要更新的文件数
（只是处理二级目录）
global type f_connect_ftpcount from function_object
end type forward prototypes
global function integer f_connect_ftpcount ()
end prototypes global function integer f_connect_ftpcount ();
do while yield()
loop string ls_directorya1,ls_directorya2 ls_directorya2 = gs_application_path string ls_directoryb1,ls_directoryb2
string ls_filename1,ls_filename2 long ll_hret
long ll_hftp1
long ll_hftp2
long ll_fftp1
long ll_fftp2
integer li_ret
long ll_filehandle1,ll_filehandle2
long ll_k boolean lb_sUCcess s_WIN32_FIND_DATA ss_file1,ss_file2 li_ret = f_connect_ftpserver()
if li_ret = -1 then return -1 ll_hret = InternetOpenA(gs_application_name,0,'','',0)
choose case li_ret
case 1
ls_directorya1 = GS_FTPDIR1
ll_hftp1 = InternetConnectA(ll_hret,GS_FTPSERVER1,GL_FTPLOGINPORT1,GS_FTPLOGINUSER1,GS_FTPLOGINPASS1,1,0,0)
case 2
ls_directorya1 = GS_FTPDIR2
ll_hftp1 = InternetConnectA(ll_hret,GS_FTPSERVER2,GL_FTPLOGINPORT2,GS_FTPLOGINUSER2,GS_FTPLOGINPASS2,1,0,0)
case 3
ls_directorya1 = GS_FTPDIR3
ll_hftp1 = InternetConnectA(ll_hret,GS_FTPSERVER3,GL_FTPLOGINPORT3,GS_FTPLOGINUSER3,GS_FTPLOGINPASS3,1,0,0)
case else
InternetCloseHandle(ll_hret);
return -1
end choose
lb_success = FtpSetCurrentDirectoryA(ll_hftp1,ls_directorya1)
if not lb_success then
InternetCloseHandle(ll_hret);
InternetCloseHandle(ll_hftp1);
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