string(237) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%86%B3%E5%BF%83%E4%B9%A6%E6%A0%BC%E5%BC%8F%E6%80%8E%E4%B9%88%E5%86%99 => Failed to connect to 14.18.46.51 port 38206: Connection refused"
决心书格式怎么写
