string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%8B%B9%E6%9E%9C%E9%AA%8C%E6%9C%BA%E8%A6%81%E9%AA%8C%E4%BB%80%E4%B9%88 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
苹果验机要验什么
