[PerlChina] 请问如何统计字符串中某个条件出现的次数

[Havel Zhang]

呵呵，还有如下的方法：）

my $a = '/sts3c_au4-j=[1..64]/vt2_tu12-k=[1..3]-l=[1..7]-m=[1..3]';

my $i;
$i = split /=/,$a;

print $i-1;





On 8/4/06, 潘建锋 <panjianfeng1979 at gmail.com> wrote:
>
> 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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