perl 常用语法

发布时间：2020-12-16 00:43:57 所属栏目：大数据来源：网络整理

导读：? $ string ?=? join ("?","this","is","a","string");? @ list ?=?("words","and");? @ string ?=? join ("::","@list","color");???? print?"@stringn";???#words?and::color? @ string ?=? join ("::",@list,"color");? print?"@stringn";???#words::an

 
 
$string?=?join("?","this","is","a","string");?
  
  @list?=?("words","and");?
  
  @string?=?join("::","@list","color");????
  
  print?"@stringn";???#words?and::color?
  
  @string?=?join("::",@list,"color");?
  
  print?"@stringn";???#words::and::color?
  
  @array?=?split(/::/,$string);?
  
  print?"@stringn";?#words::and::color?
 
 

?
  
  
匹配输入?
   
   my?$string?=?"25abc8";?
   
   $string?=~?/abc/;?
   
   $matched?=?$&;??#??$&当前匹配值??
   
   print??$matched?;?

 
 
perl?子函数传入参数?
  
  ?
  
  sub?sub1{?
  
  ????my($number1,?$number2,?$number3)?=?@_;??#?必须用?@_?
  
  ????...?
  
  ??}?

（编辑：李大同）

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