Perl5 リファレンス


import There is no builtin `import' function. It is just an ordinary method (subroutine) defined (or inherited) by modules that wish to export names to another module.
no See the the use entry elsewhere in this document function, which `no' is the opposite of.
package Declares the compilation unit as being in the given namespace.
require Demands some semantics specified by EXPR, or by `$_' if EXPR is not supplied.
use モジュールをインポートする。