求数组@k,里面重复元素的次数,并按照 @v数组排序
@k=qw/b013 c014 a012 a012 b013/;
@v=qw/a012 b013 c014/;
求数组@k,里面重复元素的次数,并按照 @v数组排序
哪位能帮忙看看呢,先谢啦
my @k = qw/b013 c014 a012 a012 b013/;
my @v = qw/a012 b013 c014/;
my %count;
grep { $count{$_}++ } @k;
for my $k (@v)
{
printf "%s times: %d\n", $k, $count{$k};
} 记数用hash
@k=qw/b013 c014 a012 a012 b013/;
@v=qw/a012 b013 c014/;
my %count;
foreach my $key ( @k ) {
$count{$key}++;
}
foreach my $key ( @v ) {
print "key: $key, count: $count{$key}\n";
} 感谢 asthman 大神的解答,学习涨知识了,想意思下的但是微信签名错误,不知道为啥
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