string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9D%A8%E5%AE%B6%E5%B0%86%E5%8E%86%E5%8F%B2%E5%B9%B4%E4%BB%A3%E8%83%8C%E6%99%AF => Failed to connect to 101.89.117.144 port 38076: Connection refused"
杨家将历史年代背景
