string(293) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%AE%89%E6%A1%88%E4%BE%8B%E7%AD%94%E6%A1%88%E5%86%99%E5%88%B0%E4%B8%80%E9%A1%B5%E7%BA%B8%E5%8F%AF%E4%BB%A5%E5%90%97 => Failed to connect to 101.89.120.29 port 38025: Connection refused"
注安案例答案写到一页纸可以吗
