using FreeSql.DataAnnotations; namespace ToolHub.Models; [Table(Name = "ToolTags")] public class ToolTag { public int ToolId { get; set; } public int TagId { get; set; } public DateTime CreatedAt { get; set; } = DateTime.Now; // 导航属性 [Navigate(nameof(ToolId))] public Tool Tool { get; set; } = null!; [Navigate(nameof(TagId))] public Tag Tag { get; set; } = null!; }