string(319) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=word%E9%A1%B5%E7%A0%81%E4%BB%8E%E6%8C%87%E5%AE%9A%E9%A1%B5%E5%BC%80%E5%A7%8B%2C%E4%BD%86%E6%98%AF%E5%89%8D%E9%9D%A2%E4%B9%9F%E6%9C%89%E9%A1%B5%E7%A0%81 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
word页码从指定页开始,但是前面也有页码
