Perl對文件的操作，跟其它的語言類似，無非也就是打開，讀與寫的操作。
1. 打開文件
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#! c:/perl/bin/perl -w use utf8; use strict; use warnings; my $filename = 'test.txt'; # 或者用絕對路徑,如: c:/perl/Learn/test.txt if(open(MYFILE,$filename)) # MYFILE是一個標志 { printf "Can open this file:%s!", $filename; close(MYFILE); } else{ print "Can't open this file!"; } |
2. 讀取文件
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#! c:/perl/bin/perl -w use utf8; use strict; use warnings; my $filename = 'test.txt'; if(open(MYFILE,$filename)) { my @myfile = <MYFILE>; #如果要讀取多行，用此方法，如果只讀取一行為:$myfile = <>; my $count = 0; #要讀取的行數(shù)，初始值為0 printf "I have opened this file: %s\n", $filename; while($count < @myfile){ #遍歷 print ("$myfile[$count]\n"); #注意此種寫法. $count++; } close(MYFILE); } else{ print "I can't open this file!"; } exit; |
3. 寫入文件
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#! c:/perl/bin/perl -w use utf8; use strict; use warnings; my $filename = 'test.txt'; if(open(MYFILE,">>".$filename)) #此種寫發(fā)，添加不刪除 { #此種寫法，重寫文件內(nèi)容 MYFILE,">".$filename print MYFILE "Write File appending Test\n"; close(MYFILE); } else{ print "I can't open this file!"; } exit; |
