1*572c4311Sfengbojiang-- an implementation of printf 2*572c4311Sfengbojiang 3*572c4311Sfengbojiangfunction printf(...) 4*572c4311Sfengbojiang io.write(string.format(...)) 5*572c4311Sfengbojiangend 6*572c4311Sfengbojiang 7*572c4311Sfengbojiangprintf("Hello %s from %s on %s\n",os.getenv"USER" or "there",_VERSION,os.date()) 8