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以下为输出结果：
F:\>perl\a.pl
KubrickGoonies was directed by Spielberg.
The Shining was directed by Kubrick.
Ten Commandments was directed by DeMille.
DeMille directe the Ten Commandments.
Spielberg directe the Goonies.
Kubrick directe the The Shining.
Goonies Spielberg The Shining Kubrick Ten Commandments DeMille
DeMille directe the Ten Commandments.
Spielberg directe the Goonies.
Kubrick directe the The Shining.
F:\>
#----测试哈希key的方法：
if(exists $hash{keyval})
{
}
#----删除关键字：
delete hash {keyval};
#---清空哈希：
%hash=（）；