using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using SqlSugar; using System.Linq.Expressions; namespace OrmTest.Models { [SugarTable("STudent")] public class Student { [SugarColumn(IsPrimaryKey = true, IsIdentity = true, ColumnName = "ID")] public int Id { get; set; } public string Name { get; set; } [SugarColumn(IsIgnore = true)] public int SchoolId { get; set; } public DateTime CreateTime { get; set; } [SugarColumn(MappingKeys = "id,SchoolId")] public virtual School School { get; set; } } }