push_csv($字符串,$前页,$位置);

用于将字符串放在CSV字符串中.

例如if $string =“one,two,four”; $前页= “三包”; $位置= 2;
然后push_csv($string,$addthis,$position)将改变$string =“one,three,four”的值;

sub push_csv {

    my @fields = split /,/,$_[0]; # split original string by commas;
    $_[1] =~ s/,//g;               # remove commas in $addthis
    $fields[$_[2]] = $_[1];        # put the $addthis string into
                                   # the array position $position.
    $_[0] = join ",",@fields;     # join the array with commas back
                                   # into the string.
}

这是我的代码中的瓶颈,因为它需要被称为几百万次.

如果你精通Perl,你能看看它,并提出优化/替代方案吗？提前致谢！