以下替换的含义是什么?
if($sr_no =~ m/^0/)
{
$sr_no =~ s/^(0*)(.*)/$2/;
}
Run Code Online (Sandbox Code Playgroud) 如何从现有地图中删除密钥?
if (exists $sampleMap{1})
{
#Here I want to remove the "1" key from sampleMap
}
Run Code Online (Sandbox Code Playgroud)