简单优化下新闻逻辑，但应该也解决不了部分刚装完插件五分钟内不能用马娘新闻的问题

Author: azmiao

__init__.py

@@ -35,7 +35,11 @@ async def help(bot, ev):
 # 主动获取新闻功能
 @sv.on_fullmatch(('马娘新闻', '赛马娘新闻'))
 async def uma_news(bot, ev):
-    await bot.send(ev, get_news())
+    try:
+        msg = get_news()
+    except:
+        msg = '获取新闻失败，请等5分钟后再次尝试'
+    await bot.send(ev, msg)
 
 # 马娘新闻播报
 @svuma.scheduled_job('cron', minute='*/5')

news_spider.py

@@ -76,6 +76,11 @@ def get_news():
         time_tmp = datetime.datetime.strptime(news.news_time, '%Y-%m-%d %H:%M:%S')
         news_time = time_tmp - timedelta(hours=1)
         msg = msg + '\n' + str(news_time) + '\n' + news.news_title + '\n' + news.news_url + '\n'
+    current_dir = os.path.join(os.path.dirname(__file__), 'prev_time.yml')
+    prev_time = news_list[0].news_time
+    file = open(current_dir, 'w', encoding="UTF-8")
+    file.write(str(prev_time))
+    file.close()
     return msg
 
 def news_broadcast():