string(369) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%86%E8%A7%A3%E4%BA%865%E7%A7%8D%E5%85%B8%E5%9E%8B%E8%B7%A8%E5%A2%83%E7%94%B5%E5%95%86%E5%B9%B3%E5%8F%B0%E7%9A%84%E7%9B%B8%E5%85%B3%E5%9F%BA%E7%A1%80%E7%9F%A5%E8%AF%86%E5%90%8E%2C%E5%B0%8F%E8%8C%97 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
了解了5种典型跨境电商平台的相关基础知识后,小茗
