string(284) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%B7%A8%E5%A2%83%E7%94%B5%E5%95%86%E4%B8%BB%E8%A6%81%E5%B9%B3%E5%8F%B0%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%83%85%E5%86%B5 => Failed to connect to 101.91.112.32 port 38162: Connection refused"
跨境电商主要平台的基本情况
