string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%90%A5%E9%94%80%E7%9F%AD%E4%BF%A1%E5%86%85%E5%AE%B9%E8%A7%84%E8%8C%83 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
营销短信内容规范
