string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8F%91%E8%86%9C%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
发膜如何使用方法
