string(312) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%A4%BE%E4%BA%A4%E7%94%B5%E5%95%86%E5%92%8C%E4%BC%A0%E7%BB%9F%E7%94%B5%E5%95%86%E7%9A%84%E6%A0%B8%E5%BF%83%E5%8C%BA%E5%88%AB%E5%9C%A8%E4%BA%8E => Failed to connect to 101.89.117.144 port 38208: Connection refused"
社交电商和传统电商的核心区别在于
