string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A6%82%E6%9E%9C%E5%A2%9E%E5%8A%A0%E6%8A%96%E9%9F%B3%E6%9D%83%E9%87%8D => Failed to connect to 14.18.117.71 port 38069: Connection refused"
如果增加抖音权重
