import (
    log "github.com/jarod2011/go-log"
    "bytes"
)

func main() {
    log.D().Logf("now is %v", time.Now())           // Debug log level
    log.I().Log(time.Now())                         // Info log level
    log.SetLevel(log.Warn)                          // now debug and info log will not display
    log.SetPrefix("[haha]")                         // so the all level log will prefix with "[haha]"
    buf := new(bytes.Buffer)
    log.W().SetWriter(buf)                          // so the warn log will write to buf
}