string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8A%96%E9%9F%B3%E5%92%8C%E5%BF%AB%E6%89%8B%E7%9A%84%E7%94%B5%E5%95%86%E5%AF%B9%E6%AF%94 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
抖音和快手的电商对比
