string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%89%AF%E8%AF%8D%E6%98%AF%E4%BF%AE%E9%A5%B0%E5%8A%A8%E8%AF%8D%E8%BF%98%E6%98%AF%E5%90%8D%E8%AF%8D => Failed to connect to 101.89.143.195 port 38109: Connection refused"
副词是修饰动词还是名词
