string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B7%98%E6%B0%94%E5%80%BC%E5%A4%9A%E4%B9%85%E6%9B%B4%E6%96%B0%E4%B8%80%E6%AC%A1%E4%BC%9A%E6%B8%85%E9%9B%B6%E5%90%97 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
淘气值多久更新一次会清零吗
