发布时间：2014-10-06 10:11:28
Consider finding the union and intersection of two unique arrays @a and @b: foreach $e (@a) { $union{$e} = 1 } foreach $e (@b) { if ( $union{$e} ) { $isect{$e} = 1 } $union{$e} = 1; } @union = keys %union; @isect = keys %isect;This would.........【阅读全文】
发布时间：2014-09-18 10:16:48
Origin: http://perl.plover.com/FAQs/Buffering.htmlSuffering from Buffering?My log file has nothing in it!My output is coming out in the wrong order!When my program terminates abnormally, the output is incomplete!My web server says I didn't send the right headers, but I.........【阅读全文】
发布时间：2014-07-02 20:59:07
#!/usr/bin/perluse strict;use ExtUtils::Installed;my $inst= ExtUtils::Installed->new();my @modules = $inst->modules();for (@modules){ my $ver = $inst->version($_) || "???"; printf("%-12s -- %s\n", $_, $ver);}__END__.........【阅读全文】
发布时间：2014-01-06 21:56:29
点击(此处)折叠或打开os.system 调用系统命令，完成后退出，返回结果是命令执行状态，一般是0 os.popen 可以实现一个“管道”，从这个命令获取的值可以在python 中继续被使用 os.popen使用语法如下: .........【阅读全文】
