string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%94%B6%E9%9B%86%E6%95%B0%E6%8D%AE%E7%BA%BF%E7%9A%84%E5%B0%8F%E5%A6%99%E6%8B%9B => Failed to connect to 101.89.120.29 port 38231: Connection refused"
收集数据线的小妙招
