string(346) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=AD16%E5%8E%9F%E7%90%86%E5%9B%BE%E7%94%9F%E6%88%90PCB%E4%B9%8B%E5%90%8E%E7%A7%BB%E9%99%A4%E4%BA%86%E5%BE%88%E5%A4%9A%E5%99%A8%E4%BB%B6%E6%98%AF%E4%BB%80%E4%B9%88%E5%8E%9F%E5%9B%A0 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
AD16原理图生成PCB之后移除了很多器件是什么原因
