foreach 循环遍历列表值，并将控制变量(var)依次设置为列表的每个元素-
foreach - 语法
Perl编程语言中的 foreach 循环的语法是-
foreach var (list) { ... }
foreach - 流程图
foreach - 示例
#!/usr/local/bin/perl@list=(2, 20, 30, 40, 50);
# foreach loop execution foreach a </span><span class="pun">(</span><span class="lit">@list</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">print</span><span class="pln"> </span><span class="str">"value of a: a\n"; }
执行以上代码后，将产生以下输出-
value of a: 2 value of a: 20 value of a: 30 value of a: 40 value of a: 50
