string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%9B%B6%E9%A3%9F%E6%89%B9%E5%8F%91%E5%BA%97%E5%8E%82%E5%AE%B6%E8%BF%9B%E8%B4%A7%E6%B5%81%E7%A8%8B%E5%9B%BE => Failed to connect to 14.18.117.71 port 38164: Connection refused"
零食批发店厂家进货流程图
