这是一款很好用的工具包

				#!/usr/local/bin/gawk -f				#				# log10-to-bytelog --				#	convert log-base-10 scores to bytelog				#				# $Header: /home/spot71/srilm/devel/utils/src/RCS/log10-to-bytelog,v 1.1 1997/04/22 20:20:41 stolcke Exp $				#				BEGIN {					logscale = 2.30258509299404568402 * 10000.5 / 1024.0;					scale = 1;					round = 0.5;				}				function rint(x) {					if (x < 0) {						return int(x - round);					} else {						return int(x + round);					}				}				{					for (i = 1; i 					    if ($i ~ /^[-+.0-9][.0-9]*$/) {						    if (round) {							$i = scale * rint($i * logscale);						    } else {							$i = scale * $i * logscale;						    }					    }					}					print;				}