小時代5-perl chdir函數應用

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perl中，chdir函數用來改變當前的工作目錄到指定目錄，如果沒有指定目錄，則到使用者的主目錄。這個函數的調用是相當於Unix中的cd命令來切換目錄。下面通過一個具體的例子來看一下chdir是如何工作的。    use strict;    use warnings;    # Print all files in a directory    sub print_files {        my $dir = ‘d:/code‘;        opendir DIR, $dir or die $!;        my @files = readdir DIR;        chdir $dir; # Use chdir or -f will not work, since -f need absolutely path        foreach my $file (@files) {            if (-f $file) {                print "$filen";            }        }    closedir DIR;    }         &print_files();

 

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小時代5-perl chdir函數應用