C# 访问属性属性的较短方式，无需访问两次

首先执行包含名称和命令的Select。然后按名字点菜

从这里开始，只需根据需要访问成员即可

[AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]
public class BotCategoryAttribute : Attribute 
{
    public string Name { get; set; }

    public BotCategoryAttribute(string name)
    {
        Name = name;
    }
}

首先执行包含名称和命令的Select。然后按名字点菜

从这里开始，只需根据需要访问成员即可

[AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]
public class BotCategoryAttribute : Attribute 
{
    public string Name { get; set; }

    public BotCategoryAttribute(string name)
    {
        Name = name;
    }
}

---

首先执行包含名称和命令的select。然后按名称排序。首先选择包含名称和命令的选项。然后按名字点菜。

var orderedList = subcommands.Select(s => new { 
    SubCommand = s,
    Name = (Attribute.GetCustomAttribute(s.Module.ModuleType, typeof(BotCategoryAttribute)) as BotCategoryAttribute)?.Name
}).OrderBy(s => s.Name);

foreach (var cmd in orderedList) {
    string moduleName = cmd.Name;
    if (moduleName != null) {
        if (!modules.ContainsKey(moduleName)) {
            modules[moduleName] = new List<Command>();
        }    
        modules[moduleName].Add(cmd.SubCommand);
    }
}