如何通过对Perl变量的引用来更改它？_Perl_Reference

如何通过对Perl变量的引用来更改它？

perl reference

如何通过对Perl变量的引用来更改它？,perl,reference,Perl,Reference,为什么要打印8？为什么$e不改变$i 引用不是别名。您必须显式取消引用它们 $$e = "eer"; # Store 'eer' into the variable referenced by $e 不一样 $e = 'eer'; # Store 'eer' into $e, discarding its previous content 引用不是别名。您必须显式取消引用它们 $$e = "eer"; # Store 'eer' into the variable referenced by

为什么要打印8？为什么$e不改变$i

引用不是别名。您必须显式取消引用它们

$$e = "eer"; # Store 'eer' into the variable referenced by $e

不一样

$e = 'eer'; # Store 'eer' into $e, discarding its previous content

引用不是别名。您必须显式取消引用它们

$$e = "eer"; # Store 'eer' into the variable referenced by $e

不一样

$e = 'eer'; # Store 'eer' into $e, discarding its previous content