string(283) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9F%BA%E5%B0%BC%E7%B3%BB%E6%95%B0%E7%B3%BB%E6%95%B0%E6%98%AF%E5%A4%9A%E5%B0%91%E4%BA%BA%E6%8B%BF%E8%B5%B0%E4%BA%86 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
基尼系数系数是多少人拿走了
