韩半仙

摘要： loops are used for repeating codeeg: while(condition){ statement1; statement2;}perl provide two basic types of loopswhile/until loopsfor/foreach loopswhile.pl#!/usr/bin/perluse strict;use warnings;main(@ARGV);sub main{ open(FH, "linesfile.txt"); while(my $line = <FH>){# message(" 阅读全文

摘要： 本章节实在是简单的不想写，太多雷同的部分了。understanding conditional statements1. conditional execute code selectivelyif(condition){ statements)2. conditionals my provide alternative codeif (condition){ statement_1}else{ statement_2}beginning with version 5.10, perl also provides a switch statement -use given ... 阅读全文