Perl 编程/关键字/foreach

Theforeachkeyword

foreach是用于启动 foreach 循环的关键字。

语法

  foreach my $variable (@list) …;

示例

代码

use 5.10.0;

%favorite = (joe => 'red', sam => 'blue', walter => 'black');

%list = %favorite;

say "%favorite = ";
foreach my $element (%favorite) {
  say $element;
}

返回以下结果

%favorite =
walter
black
joe
red
sam
blue

另请参见

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