string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%9A%E9%A9%AC%E9%80%8A%E7%BC%A9%E5%86%99%E8%8B%B1%E6%96%87%E5%AD%97%E6%AF%8D => Failed to connect to 14.18.117.71 port 38069: Connection refused"
亚马逊缩写英文字母
