qkoufu3059 开发者_高级运维 2021-07-27 16:52 l1l2l3 为火线，L11 L12为第一个开关的双控,以此类推。火线需要接入L1 串到L2，L3上， 三个灯的三个控制线分别接到L11L22L33上就可以了。如果不亮就把l11 l12串到一
I use hpricot gem in ruby on rails to parse a webpage and extract the meta-tag contents. But if the website has a <noscrpit> tag just after the <head> tag it throws an exception
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