/usr/bin/perl$age =25;# An integer assignment$name ="John Paul";# A string$salary =1445.50;# A floating pointprint"Age = $age\n";print"Name = $name\n";print"Salary = $salary\n";12345678 这将产生以下结果 - Age = 25 Name = John Paul Salary = 1445.5 1234 数组变量 数组是存储标...
$var_string="Rain-Drops-On-Roses-And-Whiskers-On-Kittens"; $var_names="Larry,David,Roger,Ken,Michael,Tom"; # transform above strings into arrays. @string=split('-', $var_string); @names =split(',', $var_names); $string1=join( '-', @string ); $string2=join( ',', @names )...
# displaying string after splitting print"$sc1 $sc2 $sc3 $sc4"; 输出: GFG Sudo GeeksforGeeks ProGeek 可能存在用户不传入要拆分的字符串的情况,那么默认情况下 split() 函数将使用 $_ 并且如果用户不传递表达式,即要拆分的字符串,那么它将使用''(空格)。 例子: # Perl program to demonstrate the # ...
/usr/bin/perlusestrict;usewarnings;# string containing delimiter(, )# at the startingmy$str =', GFG, Geeks';# usingsplitfunctionmy@spl =split(', ', $str);# printing "Array_Element: " with each# returned value so that you can see# the empty oneforeachmy$i (@spl) {print"Array_E...
/usr/bin/perlusestrict;$str1="hello world!\n";$str2=qq(i am perl!);printlength($str1)."\n";print"please input a string:\n";my$v_in= <>;#读取控制台输入chop($str1)chomp($v_in)print$v_in; 2、数组 一维数组,使用qw打印出来的没有逗号...
array names 返回所有元素索引名与模式 pattern 匹配的元素索引名列表。模式 pattern 和 string match 的模式格式相同。如果 pattern 没有指定,则返回所有数组元素索引名列表。 3Perl Perl 数组一个是存储标量值的列表变量,变量可以是不同类型。数组变量以 @ 开头。访问数组元素使用 $ + 变量名称 + [索引值] 格式...
was splitting on empty string. So, of course I needed to escape it! split /\|/ Good point. I've added your example to the article! Thanks. I have one problem to solve with perl and I cannot find the way here. Anyway I have to split one file into number of different files and ...
#!/usr/bin/perl # define Strings $var_string = "Rain-Drops-On-Roses-And-Whiskers-On-Kittens"; $var_names = "Larry,David,Roger,Ken,Michael,Tom"; # transform above strings into arrays. @string = split('-', $var_string); @names = split(',', $var_names); $string1 = join( '-...
string otherwise. If EXPR is not specified, $_ will be used. The value returned depends on the type of thing the reference is a reference to. Builtin types include: SCALAR ARRAY HASH CODE REF GLOB LVALUE If the referenced object has been blessed into a package, then that package name is...
perl v5.12.5 Last change: 2012-11-03 27 Perl Programmers Reference Guide PERLUNICODE(1) Forcing Unicode in Perl (Or Unforcing Unicode in Perl) Sometimes (see "When Unicode Does Not Happen" or "The "Unicode Bug"") there are situations where you simply need to force a byte string into ...