string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9C%8B%E5%8F%8B%E6%B8%90%E6%B8%90%E8%BF%9C%E7%A6%BB%E6%98%AF%E4%BB%80%E4%B9%88%E5%8E%9F%E5%9B%A0 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
朋友渐渐远离是什么原因
