refactor: 命令基本完成

pkg/command/operators/help.py

@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+import typing
+
+from .. import operator, entities, cmdmgr, errors
+
+
+@operator.operator_class(
+    name='help',
+    help='显示帮助',
+    usage='!help\n!help <命令名称>'
+)
+class HelpOperator(operator.CommandOperator):
+    
+    async def execute(
+        self,
+        context: entities.ExecuteContext
+    ) -> typing.AsyncGenerator[entities.CommandReturn, None]:
+        help = self.ap.tips_mgr.data['help_message']
+
+        help += '\n发送命令 !cmd 可查看命令列表'
+
+        yield entities.CommandReturn(text=help)