just for practicing golang
- concurrent download
- download through proxy
- resume downloading
- bt download
- web server
- front end
// windows
caasiu.exe -u https://github.com/Zonzely/caasiu/releases/download/v0.1.5/caasiu_0.1.5_windows_amd64.tar.gz -p socks5://127.0.0.1:10808 -v
