\s 简写擅长处理空白,它相当于[\f\t\n\r ] 换页 制表 换行 回车 空格
\s+ 匹配一个以上的空白
捕获变量:
[oracle@jhoa perl]$ cat a13.pl
$_ = "Hello there,neighbor";
if (/(\S+) (\S+),(\S+)/) {
print "words were $1\n";
}
[oracle@jhoa perl]$ perl a13.pl
words were Hello
\s 简写擅长处理空白,它相当于[\f\t\n\r ] 换页 制表 换行 回车 空格
\s+ 匹配一个以上的空白
捕获变量:
[oracle@jhoa perl]$ cat a13.pl
$_ = "Hello there,neighbor";
if (/(\S+) (\S+),(\S+)/) {
print "words were $1\n";
}
[oracle@jhoa perl]$ perl a13.pl
words were Hello