[PerlChina] 请问如何统计字符串中某个条件出现的次数

[潘建锋]

谢谢你了，没有专门的函数吗？

2006/8/4, fayland <fayland at gmail.com>:
>
> 潘建锋 wrote:
> > 比如：/sts3c_au4-j=[1..64]/vt2_tu12-k=[1..3]-l=[1..7]-m=[1..3]
> > 中"="出现的次数。
> > 谢谢！
>
> my $a = '/sts3c_au4-j=[1..64]/vt2_tu12-k=[1..3]-l=[1..7]-m=[1..3]';
>
> my $i;
> $i++ while ($a =~ /=/g);
>
> print $i;
>
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> --
> Fayland Lam // http://www.fayland.org/
>
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