string(310) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%89%8B%E6%8F%90%E7%94%B5%E8%84%91%E5%86%85%E5%AD%98%E5%B0%8F%E4%BA%86%E6%9C%89%E6%B2%A1%E6%9C%89%E8%A7%A3%E5%86%B3%E7%9A%84%E5%8A%9E%E6%B3%95 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
手提电脑内存小了有没有解决的办法
