Perl对文件的操作，跟其它的语言类似，无非也就是打开，读与写的操作。
1. 打开文件
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#! c:/perl/bin/perl -w use utf8; use strict; use warnings; my $filename = 'test.txt'; # 或者用绝对路径,如: c:/perl/Learn/test.txt if(open(MYFILE,$filename)) # MYFILE是一个标志 { printf "Can open this file:%s!", $filename; close(MYFILE); } else{ print "Can't open this file!"; } |
2. 读取文件
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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>; #如果要读取多行，用此方法，如果只读取一行为:$myfile = <>; my $count = 0; #要读取的行数，初始值为0 printf "I have opened this file: %s\n", $filename; while($count < @myfile){ #遍历 print ("$myfile[$count]\n"); #注意此种写法. $count++; } close(MYFILE); } else{ print "I can't open this file!"; } exit; |
3. 写入文件
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#! c:/perl/bin/perl -w use utf8; use strict; use warnings; my $filename = 'test.txt'; if(open(MYFILE,">>".$filename)) #此种写发，添加不删除 { #此种写法，重写文件内容 MYFILE,">".$filename print MYFILE "Write File appending Test\n"; close(MYFILE); } else{ print "I can't open this file!"; } exit; |
