string(345) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%83%B3%E8%87%AA%E5%B7%B1%E5%BC%80%E4%B8%AA%E5%B0%8F%E5%BA%97%2C%E6%8A%95%E8%B5%84%E5%B0%8F%2C%E4%BD%86%E6%98%AF%E5%B8%8C%E6%9C%9B%E5%88%A9%E6%B6%A6%E9%AB%98%E4%B8%80%E7%82%B9 => Failed to connect to 101.89.143.195 port 38205: Connection refused"
想自己开个小店,投资小,但是希望利润高一点
