perl读文件第m到n行的实例
发布时间:2020-12-16 00:09:09 所属栏目:大数据 来源:网络整理
导读:#!/usr/bin/perluse strict;use warnings;open (IN,"testdata.dat") or die;open (OUT,"./someRN.txt") or die;my $i=1;while (IN) {chomp;if ($i=2$i=4) { #..1000.2000........LZ........... print OUT "$_n"; } $i++;}seek(IN,0);$i=1;while (IN) {chomp
#!/usr/bin/perl use strict; use warnings; open (IN,"testdata.dat") or die; open (OUT,">>./someRN.txt") or die; my $i=1; while (<IN>) { chomp; if ($i>=2&&$i<=4) { #..1000.2000........LZ........... print OUT "$_n"; } $i++; } seek(IN,0); $i=1; while (<IN>) { chomp; if ($i>=6&&$i<=8) { #..1000.2000........LZ........... print OUT "$_n"; } $i++; } close IN; close OUT; (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |