string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%89%8B%E6%9C%BA%E6%9B%B2%E9%9D%A2%E5%B1%8F%E7%9A%84%E7%94%A8%E5%A4%84 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
手机曲面屏的用处
