fix：微调了关系参

src/plugins/example_commands/commands/help_command.py

@@ -0,0 +1,115 @@
+from src.common.logger_manager import get_logger
+from src.chat.message_receive.command_handler import BaseCommand, register_command, _COMMAND_REGISTRY
+from typing import Tuple, Optional
+
+logger = get_logger("help_command")
+
+@register_command
+class HelpCommand(BaseCommand):
+    """帮助命令，显示所有可用命令的帮助信息"""
+    
+    command_name = "help"
+    command_description = "显示所有可用命令的帮助信息"
+    command_pattern = r"^/help(?:\s+(?P<command>\w+))?$"  # 匹配 /help 或 /help 命令名
+    command_help = "使用方法: /help [命令名] - 显示所有命令或特定命令的帮助信息"
+    command_examples = ["/help", "/help echo"]
+    enable_command = True
+    
+    async def execute(self) -> Tuple[bool, Optional[str]]:
+        """执行帮助命令
+        
+        Returns:
+            Tuple[bool, Optional[str]]: (是否执行成功, 回复消息)
+        """
+        try:
+            # 获取匹配到的命令名（如果有）
+            command_name = self.matched_groups.get("command")
+            
+            # 如果指定了命令名，显示该命令的详细帮助
+            if command_name:
+                logger.info(f"{self.log_prefix} 查询命令帮助: {command_name}")
+                return self._show_command_help(command_name)
+            
+            # 否则，显示所有命令的简要帮助
+            logger.info(f"{self.log_prefix} 查询所有命令帮助")
+            return self._show_all_commands()
+        
+        except Exception as e:
+            logger.error(f"{self.log_prefix} 执行帮助命令时出错: {e}")
+            return False, f"执行命令时出错: {str(e)}"
+    
+    def _show_command_help(self, command_name: str) -> Tuple[bool, str]:
+        """显示特定命令的详细帮助信息
+        
+        Args:
+            command_name: 命令名称
+            
+        Returns:
+            Tuple[bool, str]: (是否执行成功, 回复消息)
+        """
+        # 查找命令
+        command_cls = _COMMAND_REGISTRY.get(command_name)
+        
+        if not command_cls:
+            return False, f"未找到命令: {command_name}"
+        
+        # 获取命令信息
+        description = getattr(command_cls, "command_description", "无描述")
+        help_text = getattr(command_cls, "command_help", "无帮助信息")
+        examples = getattr(command_cls, "command_examples", [])
+        
+        # 构建帮助信息
+        help_info = [
+            f"【命令】: {command_name}",
+            f"【描述】: {description}",
+            f"【用法】: {help_text}"
+        ]
+        
+        # 添加示例
+        if examples:
+            help_info.append("【示例】:")
+            for example in examples:
+                help_info.append(f"  {example}")
+        
+        return True, "\n".join(help_info)
+    
+    def _show_all_commands(self) -> Tuple[bool, str]:
+        """显示所有可用命令的简要帮助信息
+        
+        Returns:
+            Tuple[bool, str]: (是否执行成功, 回复消息)
+        """
+        # 获取所有已启用的命令
+        enabled_commands = {
+            name: cls for name, cls in _COMMAND_REGISTRY.items()
+            if getattr(cls, "enable_command", True)
+        }
+        
+        if not enabled_commands:
+            return True, "当前没有可用的命令"
+        
+        # 构建命令列表
+        command_list = ["可用命令列表:"]
+        for name, cls in sorted(enabled_commands.items()):
+            description = getattr(cls, "command_description", "无描述")
+            # 获取命令前缀示例
+            examples = getattr(cls, "command_examples", [])
+            prefix = ""
+            if examples and len(examples) > 0:
+                # 从第一个示例中提取前缀
+                example = examples[0]
+                # 找到第一个空格前的内容作为前缀
+                space_pos = example.find(" ")
+                if space_pos > 0:
+                    prefix = example[:space_pos]
+                else:
+                    prefix = example
+            else:
+                # 默认使用/name作为前缀
+                prefix = f"/{name}"
+            
+            command_list.append(f"{prefix} - {description}")
+        
+        command_list.append("\n使用 /help <命令名> 获取特定命令的详细帮助")
+        
+        return True, "\n".join(command_list)