-2
我混淆指数和RINDEX而写的perl script.What是Perl指数和RINDEX之间的区别(用简单的例子说明)指数RINDEX在Perl
我混淆指数和RINDEX而写的perl script.What是Perl指数和RINDEX之间的区别(用简单的例子说明)指数RINDEX在Perl
perl -E 'say rindex("bar foo bar foo", "foo")'
^__ found first substring from right side
12
perl -E 'say index("bar foo bar foo", "foo")'
^__ found first substring from left side
4
请评论向下票 –
什么两者的区别? – user3098497
这里我们必须声明子字符串? – user3098497