string(305) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E6%A1%88%E4%BE%8B%E8%AE%A1%E7%AE%97%E9%A2%98%E6%AD%A5%E9%AA%A4%E5%AF%B9%E4%BA%86%2C%E7%BB%93%E6%9E%9C%E9%94%99%E4%BA%86 => Failed to connect to 101.91.112.32 port 38195: Connection refused"
一建案例计算题步骤对了,结果错了
