curl_ftp_upload 64 bit development environment is required, and all uploaded libraries are 64 bit versions windows cmake: cmake -G "Visual Studio 15 Win64" .. reference download: https://github.com/curl/curl/releases ref： https://curl.haxx.se/libcurl/c/ftpuploadresume.html https://curl.haxx.se/libcurl/c/ftpgetinfo.html python use cffi，ref：https://www.cnblogs.com/ccxikka/p/9637545.html