碰到到的难题急：抽取多行字符串

ulmer

原帖由 xiaoyafeng 于 2006-12-14 18:14 发表
不知道为什么大家都这么喜欢用/s?个人感觉不是一个好习惯.为什么不用f/f操作符?
while (<DATA>) {
...

Very Strange QUESTION!?
That 's depends totally on your request.
If you treat a data as SCALAR string to process it at once (say such as multilines),
regex with /s is a choice.
If you want to treat a data (contains multilines) per line (per element),
you can use loop funnction (for, foreach, while) (option with filehandel) to process
it for each!  Using split "\n", MUTILINE:STRING to hadle is an array or list.

--ulmer

Namelessxp

楼上的别打岔，俺要听 __DATA__ 和 f/f 的用法，除了上面示范的，有其它的吗？

xiaoyafeng

看一下骆驼书关于操作符那一章,有详细说明.
简单来说 ..或... 在不同环境有不同含义
list 中就是 range operator
scalar 中就是 f/f operator 在文件或循环操作中很方便:
#打印 5-10 行
while (<FH>) {
if (5..10) {
print;
}
}