string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E6%A0%B7%E8%B0%83%E9%BC%A0%E6%A0%87%E7%9A%84%E7%81%B5%E6%95%8F%E5%BA%A6 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
怎样调鼠标的灵敏度
