string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B0%8F%E7%BA%A2%E4%B9%A6%E5%90%84%E7%A7%8D%E7%AC%A6%E5%8F%B7%E6%98%AF%E5%92%8B%E5%BC%84%E7%9A%84 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
小红书各种符号是咋弄的
